Merge pull request 'XZG——伪代码2' (#35 ) from XZG——伪代码2 into master

XZG_伪代码2
XZG_伪代码
17 changed files with 5172 additions and 104 deletions
--- a/-WritetoFile.svg
+++ b/-WritetoFile.svg
@ -0,0 +1,150 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
+
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2666" height="3813">
+	<rect x="0" y="0" width="2666" height="3813" fill="#FFFFFF"/>
+	<g>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="837,248 837,323"/>
+		<polygon fill="#404040" stroke="none" points="837,341 854,310 819,310"/>
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+		<polygon fill="#404040" stroke="none" points="837,3565 854,3534 819,3534"/>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 682,124 A 62 62, 0, 0 0, 682 248 L 992,248 A 62 62, 0, 0 0, 992 124 Z"/>
+			<text x="837" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="837" dy="62" unicode-bidi="embed">WritetoFile</tspan>
+			</text>
+		</g>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 713,3565 A 62 62, 0, 0 0, 713 3689 L 961,3689 A 62 62, 0, 0 0, 961 3565 Z"/>
+			<text x="837" y="3583" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="837" dy="62" unicode-bidi="embed">End</tspan>
+			</text>
+		</g>
+		<g>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="837,496 837,571"/>
+			<polygon fill="#404040" stroke="none" points="837,589 854,558 819,558"/>
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+			<polygon fill="#404040" stroke="none" points="837,837 854,806 819,806"/>
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+			<polygon fill="#404040" stroke="none" points="837,2077 854,2046 819,2046"/>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 651,341 L 651,496 L 1023,496 L 1023,341 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="651,372 1023,372"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="682,341 682,496"/>
+				<text x="852" y="390" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="852" dy="62" unicode-bidi="embed">Integer i</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 651,589 L 651,744 L 1023,744 L 1023,589 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="651,620 1023,620"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="682,589 682,744"/>
+				<text x="852" y="638" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="852" dy="62" unicode-bidi="embed">Integer j</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1271,1085 1488,1085 1488,1377"/>
+				<polygon fill="#404040" stroke="none" points="1488,1395 1505,1364 1470,1364"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1488,1581 1488,1705 885,1705"/>
+				<polygon fill="#404040" stroke="none" points="868,1705 898,1722 898,1687"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="403,1085 155,1085 155,1705 788,1705"/>
+				<polygon fill="#404040" stroke="none" points="806,1705 775,1687 775,1722"/>
+				<g>
+					<path fill="#FFD0D0" stroke="#A07070" stroke-width="4" stroke-dasharray="none" d="M 837,837 L 372,1085 L 837,1333 L 1302,1085 Z"/>
+					<text x="837" y="1010" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="837" dy="62" unicode-bidi="embed">(fp = fopen(&quot;student.txt&quot;,</tspan>
+						<tspan x="837" dy="62" unicode-bidi="embed"> &quot;w&quot;)) == NULL</tspan>
+					</text>
+				</g>
+				<g>
+					<path fill="#D0FFD0" stroke="#70A070" stroke-width="4" stroke-dasharray="none" d="M 1178,1395 L 1085,1581 L 1798,1581 L 1891,1395 Z"/>
+					<text x="1488" y="1413" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="1488" dy="62" unicode-bidi="embed">Output &quot;Failure to open</tspan>
+						<tspan x="1488" dy="62" unicode-bidi="embed"> score.txt!\n&quot;</tspan>
+					</text>
+				</g>
+				<g>
+				</g>
+				<ellipse cx="837" cy="1705" rx="31" ry="31" fill="#FFD0D0" stroke="#A07070" stroke-width="4"/>
+				<text x="1395" y="979" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="1395" dy="62" unicode-bidi="embed">True</tspan>
+				</text>
+				<text x="263" y="979" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="263" dy="62" unicode-bidi="embed">False</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 465,1829 L 403,1953 L 1209,1953 L 1271,1829 Z"/>
+				<text x="837" y="1847" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="837" dy="62" unicode-bidi="embed">Output fp, &quot;%d\t%d\n&quot;, n, m</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1085,2139 1488,2139 1488,2245"/>
+				<polygon fill="#404040" stroke="none" points="1488,2263 1505,2232 1470,2232"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1488,3348 1488,3441 899,3441 899,2218"/>
+				<polygon fill="#404040" stroke="none" points="899,2201 881,2231 916,2231"/>
+				<g>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1488,2449 1488,2555"/>
+					<polygon fill="#404040" stroke="none" points="1488,2573 1505,2542 1470,2542"/>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1488,2697 1488,3144"/>
+					<polygon fill="#404040" stroke="none" points="1488,3162 1505,3131 1470,3131"/>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1116,2263 L 1023,2449 L 1860,2449 L 1953,2263 Z"/>
+						<text x="1488" y="2281" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1488" dy="62" unicode-bidi="embed">Output fp, &quot;%10ld%10s&quot;, stu</tspan>
+							<tspan x="1488" dy="62" unicode-bidi="embed">[i].num, stu[i].name</tspan>
+						</text>
+					</g>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1736,2635 2108,2635 2108,2741"/>
+						<polygon fill="#404040" stroke="none" points="2108,2759 2125,2728 2090,2728"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2108,2945 2108,3038 1550,3038 1550,2714"/>
+						<polygon fill="#404040" stroke="none" points="1550,2697 1532,2727 1567,2727"/>
+						<g>
+							<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1767,2759 L 1674,2945 L 2449,2945 L 2542,2759 Z"/>
+							<text x="2108" y="2777" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="2108" dy="62" unicode-bidi="embed">Output fp, &quot;%10.0f&quot;, stu[i].</tspan>
+								<tspan x="2108" dy="62" unicode-bidi="embed">score[j]</tspan>
+							</text>
+						</g>
+						<g>
+							<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 1302,2573 L 1240,2635 L 1302,2697 L 1674,2697 L 1736,2635 L 1674,2573 Z"/>
+							<text x="1488" y="2591" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1488" dy="62" unicode-bidi="embed">j = 0 to m-1</tspan>
+							</text>
+						</g>
+						<text x="1829" y="2529" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1829" dy="62" unicode-bidi="embed">Next</tspan>
+						</text>
+						<text x="1379" y="2715" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1379" dy="62" unicode-bidi="embed">Done</tspan>
+						</text>
+					</g>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1147,3162 L 1054,3348 L 1829,3348 L 1922,3162 Z"/>
+						<text x="1488" y="3180" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1488" dy="62" unicode-bidi="embed">Output fp, &quot;%10.0f%10.0f\</tspan>
+							<tspan x="1488" dy="62" unicode-bidi="embed">n&quot;, stu[i].sum, stu[i].aver</tspan>
+						</text>
+					</g>
+				</g>
+				<g>
+					<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 651,2077 L 589,2139 L 651,2201 L 1023,2201 L 1085,2139 L 1023,2077 Z"/>
+					<text x="837" y="2095" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="837" dy="62" unicode-bidi="embed">i = 0 to n-1</tspan>
+					</text>
+				</g>
+				<text x="1178" y="2033" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="1178" dy="62" unicode-bidi="embed">Next</tspan>
+				</text>
+				<text x="728" y="2219" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="728" dy="62" unicode-bidi="embed">Done</tspan>
+				</text>
+			</g>
+		</g>
+	</g>
+</svg>
--- a/AsSortbyNum.svg
+++ b/AsSortbyNum.svg
@ -0,0 +1,239 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
+
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2728" height="5487">
+	<rect x="0" y="0" width="2728" height="5487" fill="#FFFFFF"/>
+	<g>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,248 372,323"/>
+		<polygon fill="#404040" stroke="none" points="372,341 389,310 354,310"/>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,1488 372,5221"/>
+		<polygon fill="#404040" stroke="none" points="372,5239 389,5208 354,5208"/>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 186,124 A 62 62, 0, 0 0, 186 248 L 558,248 A 62 62, 0, 0 0, 558 124 Z"/>
+			<text x="372" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="372" dy="62" unicode-bidi="embed">AsSortbyNum</tspan>
+			</text>
+		</g>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 248,5239 A 62 62, 0, 0 0, 248 5363 L 496,5363 A 62 62, 0, 0 0, 496 5239 Z"/>
+			<text x="372" y="5257" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="372" dy="62" unicode-bidi="embed">End</tspan>
+			</text>
+		</g>
+		<g>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,496 372,571"/>
+			<polygon fill="#404040" stroke="none" points="372,589 389,558 354,558"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,744 372,819"/>
+			<polygon fill="#404040" stroke="none" points="372,837 389,806 354,806"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,992 372,1067"/>
+			<polygon fill="#404040" stroke="none" points="372,1085 389,1054 354,1054"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,1240 372,1346"/>
+			<polygon fill="#404040" stroke="none" points="372,1364 389,1333 354,1333"/>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 186,341 L 186,496 L 558,496 L 558,341 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="186,372 558,372"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="217,341 217,496"/>
+				<text x="387" y="390" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Integer i</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 186,589 L 186,744 L 558,744 L 558,589 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="186,620 558,620"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="217,589 217,744"/>
+				<text x="387" y="638" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Integer j</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 186,837 L 186,992 L 558,992 L 558,837 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="186,868 558,868"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="217,837 217,992"/>
+				<text x="387" y="886" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Integer k</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 186,1085 L 186,1240 L 558,1240 L 558,1085 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="186,1116 558,1116"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="217,1085 217,1240"/>
+				<text x="387" y="1134" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Integer t</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="620,1426 992,1426 992,1532"/>
+				<polygon fill="#404040" stroke="none" points="992,1550 1009,1519 974,1519"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="992,5022 992,5115 434,5115 434,1505"/>
+				<polygon fill="#404040" stroke="none" points="434,1488 416,1518 451,1518"/>
+				<g>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="992,1674 992,1780"/>
+					<polygon fill="#404040" stroke="none" points="992,1798 1009,1767 974,1767"/>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="992,1922 992,2958"/>
+					<polygon fill="#404040" stroke="none" points="992,2976 1009,2945 974,2945"/>
+					<g>
+						<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 806,1550 L 806,1674 L 1178,1674 L 1178,1550 Z"/>
+						<text x="992" y="1568" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="992" dy="62" unicode-bidi="embed">k = i</tspan>
+						</text>
+					</g>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1240,1860 1829,1860 1829,1966"/>
+						<polygon fill="#404040" stroke="none" points="1829,1984 1846,1953 1811,1953"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1829,2759 1829,2852 1054,2852 1054,1939"/>
+						<polygon fill="#404040" stroke="none" points="1054,1922 1036,1952 1071,1952"/>
+						<g>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2201,2201 2418,2201 2418,2462"/>
+							<polygon fill="#404040" stroke="none" points="2418,2480 2435,2449 2400,2449"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2418,2604 2418,2728 1877,2728"/>
+							<polygon fill="#404040" stroke="none" points="1860,2728 1890,2745 1890,2710"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1457,2201 1209,2201 1209,2728 1780,2728"/>
+							<polygon fill="#404040" stroke="none" points="1798,2728 1767,2710 1767,2745"/>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1829,1984 L 1426,2201 L 1829,2418 L 2232,2201 Z"/>
+								<text x="1829" y="2157" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1829" dy="62" unicode-bidi="embed">if (stu[j].num &lt; stu[k].num)</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 2232,2480 L 2232,2604 L 2604,2604 L 2604,2480 Z"/>
+								<text x="2418" y="2498" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2418" dy="62" unicode-bidi="embed">k = j</tspan>
+								</text>
+							</g>
+							<g>
+							</g>
+							<ellipse cx="1829" cy="2728" rx="31" ry="31" fill="#C04040" stroke="#602020" stroke-width="4"/>
+							<text x="2325" y="2095" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="2325" dy="62" unicode-bidi="embed">True</tspan>
+							</text>
+							<text x="1317" y="2095" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1317" dy="62" unicode-bidi="embed">False</tspan>
+							</text>
+						</g>
+						<g>
+							<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 806,1798 L 744,1860 L 806,1922 L 1178,1922 L 1240,1860 L 1178,1798 Z"/>
+							<text x="992" y="1816" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="992" dy="62" unicode-bidi="embed">j = i+1 to n-1</tspan>
+							</text>
+						</g>
+						<text x="1333" y="1754" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1333" dy="62" unicode-bidi="embed">Next</tspan>
+						</text>
+						<text x="883" y="1940" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="883" dy="62" unicode-bidi="embed">Done</tspan>
+						</text>
+					</g>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1147,3069 1519,3069 1519,3237"/>
+						<polygon fill="#404040" stroke="none" points="1519,3255 1536,3224 1501,3224"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,4867 1519,4991 1040,4991"/>
+						<polygon fill="#404040" stroke="none" points="1023,4991 1053,5008 1053,4973"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="837,3069 589,3069 589,4991 943,4991"/>
+						<polygon fill="#404040" stroke="none" points="961,4991 930,4973 930,5008"/>
+						<g>
+							<path fill="#FFD0D0" stroke="#A07070" stroke-width="4" stroke-dasharray="none" d="M 992,2976 L 806,3069 L 992,3162 L 1178,3069 Z"/>
+							<text x="992" y="3025" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="992" dy="62" unicode-bidi="embed">k != i</tspan>
+							</text>
+						</g>
+						<g>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,3379 1519,3826"/>
+							<polygon fill="#404040" stroke="none" points="1519,3844 1536,3813 1501,3813"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,4030 1519,4105"/>
+							<polygon fill="#404040" stroke="none" points="1519,4123 1536,4092 1501,4092"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,4309 1519,4384"/>
+							<polygon fill="#404040" stroke="none" points="1519,4402 1536,4371 1501,4371"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,4588 1519,4663"/>
+							<polygon fill="#404040" stroke="none" points="1519,4681 1536,4650 1501,4650"/>
+							<g>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1767,3317 2139,3317 2139,3423"/>
+								<polygon fill="#404040" stroke="none" points="2139,3441 2156,3410 2121,3410"/>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2139,3627 2139,3720 1581,3720 1581,3396"/>
+								<polygon fill="#404040" stroke="none" points="1581,3379 1563,3409 1598,3409"/>
+								<g>
+									<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1705,3441 L 1705,3627 L 2573,3627 L 2573,3441 Z"/>
+									<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1736,3441 1736,3627"/>
+									<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="2542,3441 2542,3627"/>
+									<text x="2139" y="3459" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2139" dy="62" unicode-bidi="embed">SwapFloat(&amp;stu[k].score[t], &amp;</tspan>
+										<tspan x="2139" dy="62" unicode-bidi="embed">stu[i].score[t])</tspan>
+									</text>
+								</g>
+								<g>
+									<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 1333,3255 L 1271,3317 L 1333,3379 L 1705,3379 L 1767,3317 L 1705,3255 Z"/>
+									<text x="1519" y="3273" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="1519" dy="62" unicode-bidi="embed">t = 0 to m-1</tspan>
+									</text>
+								</g>
+								<text x="1860" y="3211" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1860" dy="62" unicode-bidi="embed">Next</tspan>
+								</text>
+								<text x="1410" y="3397" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1410" dy="62" unicode-bidi="embed">Done</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1054,3844 L 1054,4030 L 1984,4030 L 1984,3844 Z"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1085,3844 1085,4030"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1953,3844 1953,4030"/>
+								<text x="1519" y="3862" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1519" dy="62" unicode-bidi="embed">SwapFloat(&amp;stu[k].sum, &amp;stu[i].</tspan>
+									<tspan x="1519" dy="62" unicode-bidi="embed">sum)</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1054,4123 L 1054,4309 L 1984,4309 L 1984,4123 Z"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1085,4123 1085,4309"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1953,4123 1953,4309"/>
+								<text x="1519" y="4141" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1519" dy="62" unicode-bidi="embed">SwapFloat(&amp;stu[k].aver, &amp;stu[i].</tspan>
+									<tspan x="1519" dy="62" unicode-bidi="embed">aver)</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1054,4402 L 1054,4588 L 1984,4588 L 1984,4402 Z"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1085,4402 1085,4588"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1953,4402 1953,4588"/>
+								<text x="1519" y="4420" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1519" dy="62" unicode-bidi="embed">SwapLong(&amp;stu[k].num, &amp;stu[i].</tspan>
+									<tspan x="1519" dy="62" unicode-bidi="embed">num)</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1116,4681 L 1116,4867 L 1922,4867 L 1922,4681 Z"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1147,4681 1147,4867"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1891,4681 1891,4867"/>
+								<text x="1519" y="4699" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1519" dy="62" unicode-bidi="embed">SwapChar(stu[k].name, stu</tspan>
+									<tspan x="1519" dy="62" unicode-bidi="embed">[i].name)</tspan>
+								</text>
+							</g>
+						</g>
+						<g>
+						</g>
+						<ellipse cx="992" cy="4991" rx="31" ry="31" fill="#FFD0D0" stroke="#A07070" stroke-width="4"/>
+						<text x="1271" y="2963" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1271" dy="62" unicode-bidi="embed">True</tspan>
+						</text>
+						<text x="697" y="2963" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="697" dy="62" unicode-bidi="embed">False</tspan>
+						</text>
+					</g>
+				</g>
+				<g>
+					<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 186,1364 L 124,1426 L 186,1488 L 558,1488 L 620,1426 L 558,1364 Z"/>
+					<text x="372" y="1382" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="372" dy="62" unicode-bidi="embed">i = 0 to n-2</tspan>
+					</text>
+				</g>
+				<text x="713" y="1320" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="713" dy="62" unicode-bidi="embed">Next</tspan>
+				</text>
+				<text x="263" y="1506" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="263" dy="62" unicode-bidi="embed">Done</tspan>
+				</text>
+			</g>
+		</g>
+	</g>
+</svg>
--- a/AverSumofEveryCourse.svg
+++ b/AverSumofEveryCourse.svg
@ -0,0 +1,137 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
+
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2232" height="3317">
+	<rect x="0" y="0" width="2232" height="3317" fill="#FFFFFF"/>
+	<g>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="496,248 496,323"/>
+		<polygon fill="#404040" stroke="none" points="496,341 513,310 478,310"/>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="496,1488 496,3051"/>
+		<polygon fill="#404040" stroke="none" points="496,3069 513,3038 478,3038"/>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 186,124 A 62 62, 0, 0 0, 186 248 L 806,248 A 62 62, 0, 0 0, 806 124 Z"/>
+			<text x="496" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="496" dy="62" unicode-bidi="embed">AverSumofEveryCourse</tspan>
+			</text>
+		</g>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 372,3069 A 62 62, 0, 0 0, 372 3193 L 620,3193 A 62 62, 0, 0 0, 620 3069 Z"/>
+			<text x="496" y="3087" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="496" dy="62" unicode-bidi="embed">End</tspan>
+			</text>
+		</g>
+		<g>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="496,496 496,571"/>
+			<polygon fill="#404040" stroke="none" points="496,589 513,558 478,558"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="496,744 496,819"/>
+			<polygon fill="#404040" stroke="none" points="496,837 513,806 478,806"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="496,992 496,1067"/>
+			<polygon fill="#404040" stroke="none" points="496,1085 513,1054 478,1054"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="496,1240 496,1346"/>
+			<polygon fill="#404040" stroke="none" points="496,1364 513,1333 478,1333"/>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 310,341 L 310,496 L 682,496 L 682,341 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="310,372 682,372"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="341,341 341,496"/>
+				<text x="511" y="390" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="511" dy="62" unicode-bidi="embed">Integer i</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 310,589 L 310,744 L 682,744 L 682,589 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="310,620 682,620"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="341,589 341,744"/>
+				<text x="511" y="638" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="511" dy="62" unicode-bidi="embed">Integer j</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 124,837 L 124,992 L 868,992 L 868,837 Z"/>
+				<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="124,868 868,868"/>
+				<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="155,837 155,992"/>
+				<text x="511" y="886" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="511" dy="62" unicode-bidi="embed">Real sum[COURSE_NUM]</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 124,1085 L 124,1240 L 868,1240 L 868,1085 Z"/>
+				<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="124,1116 868,1116"/>
+				<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="155,1085 155,1240"/>
+				<text x="511" y="1134" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="511" dy="62" unicode-bidi="embed">Real aver[COURSE_NUM]</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="744,1426 1178,1426 1178,1532"/>
+				<polygon fill="#404040" stroke="none" points="1178,1550 1195,1519 1160,1519"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1178,2852 1178,2945 558,2945 558,1505"/>
+				<polygon fill="#404040" stroke="none" points="558,1488 540,1518 575,1518"/>
+				<g>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1178,1674 1178,1780"/>
+					<polygon fill="#404040" stroke="none" points="1178,1798 1195,1767 1160,1767"/>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1178,1922 1178,2369"/>
+					<polygon fill="#404040" stroke="none" points="1178,2387 1195,2356 1160,2356"/>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1178,2511 1178,2586"/>
+					<polygon fill="#404040" stroke="none" points="1178,2604 1195,2573 1160,2573"/>
+					<g>
+						<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 992,1550 L 992,1674 L 1364,1674 L 1364,1550 Z"/>
+						<text x="1178" y="1568" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1178" dy="62" unicode-bidi="embed">sum[j] = 0</tspan>
+						</text>
+					</g>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1426,1860 1736,1860 1736,1966"/>
+						<polygon fill="#404040" stroke="none" points="1736,1984 1753,1953 1718,1953"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1736,2170 1736,2263 1240,2263 1240,1939"/>
+						<polygon fill="#404040" stroke="none" points="1240,1922 1222,1952 1257,1952"/>
+						<g>
+							<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1364,1984 L 1364,2170 L 2108,2170 L 2108,1984 Z"/>
+							<text x="1736" y="2002" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1736" dy="62" unicode-bidi="embed">sum[j] = sum[j]+stu[i].score</tspan>
+								<tspan x="1736" dy="62" unicode-bidi="embed">[j]</tspan>
+							</text>
+						</g>
+						<g>
+							<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 992,1798 L 930,1860 L 992,1922 L 1364,1922 L 1426,1860 L 1364,1798 Z"/>
+							<text x="1178" y="1816" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1178" dy="62" unicode-bidi="embed">i = 0 to n-1</tspan>
+							</text>
+						</g>
+						<text x="1519" y="1754" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1519" dy="62" unicode-bidi="embed">Next</tspan>
+						</text>
+						<text x="1069" y="1940" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1069" dy="62" unicode-bidi="embed">Done</tspan>
+						</text>
+					</g>
+					<g>
+						<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 930,2387 L 930,2511 L 1426,2511 L 1426,2387 Z"/>
+						<text x="1178" y="2405" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1178" dy="62" unicode-bidi="embed">aver[j] = sum[i]/i</tspan>
+						</text>
+					</g>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 806,2604 L 682,2852 L 1550,2852 L 1674,2604 Z"/>
+						<text x="1178" y="2622" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1178" dy="62" unicode-bidi="embed">Output &quot;course %d: sum =</tspan>
+							<tspan x="1178" dy="62" unicode-bidi="embed"> %.0f,aver = %.0f\n&quot;, j + 1,</tspan>
+							<tspan x="1178" dy="62" unicode-bidi="embed"> sum[j], aver[j]</tspan>
+						</text>
+					</g>
+				</g>
+				<g>
+					<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 310,1364 L 248,1426 L 310,1488 L 682,1488 L 744,1426 L 682,1364 Z"/>
+					<text x="496" y="1382" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="496" dy="62" unicode-bidi="embed">j = 0 to m-1</tspan>
+					</text>
+				</g>
+				<text x="837" y="1320" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="837" dy="62" unicode-bidi="embed">Next</tspan>
+				</text>
+				<text x="387" y="1506" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Done</tspan>
+				</text>
+			</g>
+		</g>
+	</g>
+</svg>
--- a/AverSumofEveryStudent.svg
+++ b/AverSumofEveryStudent.svg
@ -0,0 +1,118 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
+
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2628" height="3348">
+	<rect x="0" y="0" width="2628" height="3348" fill="#FFFFFF"/>
+	<g>
+		<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="612,360 612,447"/>
+		<polygon fill="#404040" stroke="none" points="612,468 632,433 591,433"/>
+		<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="612,1224 612,3039"/>
+		<polygon fill="#404040" stroke="none" points="612,3060 632,3025 591,3025"/>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="5" stroke-dasharray="none" d="M 252,144 A 108 108, 0, 0 0, 252 360 L 972,360 A 108 108, 0, 0 0, 972 144 Z"/>
+			<text x="612" y="165" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="612" dy="72" unicode-bidi="embed">AverSumofEveryStudent</tspan>
+				<tspan x="612" dy="72" unicode-bidi="embed">(Integer n, Integer m)</tspan>
+			</text>
+		</g>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="5" stroke-dasharray="none" d="M 468,3060 A 72 72, 0, 0 0, 468 3204 L 756,3204 A 72 72, 0, 0 0, 756 3060 Z"/>
+			<text x="612" y="3081" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="612" dy="72" unicode-bidi="embed">End</tspan>
+			</text>
+		</g>
+		<g>
+			<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="612,648 612,735"/>
+			<polygon fill="#404040" stroke="none" points="612,756 632,721 591,721"/>
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+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" d="M 396,468 L 396,648 L 828,648 L 828,468 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" points="396,504 828,504"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" points="432,468 432,648"/>
+				<text x="630" y="525" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="630" dy="72" unicode-bidi="embed">Integer i</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" d="M 396,756 L 396,936 L 828,936 L 828,756 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" points="396,792 828,792"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" points="432,756 432,936"/>
+				<text x="630" y="813" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="630" dy="72" unicode-bidi="embed">Integer j</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="900,1152 1404,1152 1404,1275"/>
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+				<polygon fill="#404040" stroke="none" points="684,1224 663,1258 704,1258"/>
+				<g>
+					<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="1404,1440 1404,1563"/>
+					<polygon fill="#404040" stroke="none" points="1404,1584 1424,1549 1383,1549"/>
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+					<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="1404,2412 1404,2499"/>
+					<polygon fill="#404040" stroke="none" points="1404,2520 1424,2485 1383,2485"/>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 1152,1296 L 1152,1440 L 1656,1440 L 1656,1296 Z"/>
+						<text x="1404" y="1317" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1404" dy="72" unicode-bidi="embed">stu[i].sum = 0</tspan>
+						</text>
+					</g>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="1692,1656 2052,1656 2052,1779"/>
+						<polygon fill="#404040" stroke="none" points="2052,1800 2072,1765 2031,1765"/>
+						<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="2052,2016 2052,2124 1476,2124 1476,1748"/>
+						<polygon fill="#404040" stroke="none" points="1476,1728 1455,1762 1496,1762"/>
+						<g>
+							<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 1620,1800 L 1620,2016 L 2484,2016 L 2484,1800 Z"/>
+							<text x="2052" y="1821" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="2052" dy="72" unicode-bidi="embed">stu[i].sum = stu[i].sum+stu</tspan>
+								<tspan x="2052" dy="72" unicode-bidi="embed">[i].score[j]</tspan>
+							</text>
+						</g>
+						<g>
+							<path fill="#FFE0A0" stroke="#A08040" stroke-width="5" stroke-dasharray="none" d="M 1188,1584 L 1116,1656 L 1188,1728 L 1620,1728 L 1692,1656 L 1620,1584 Z"/>
+							<text x="1404" y="1605" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1404" dy="72" unicode-bidi="embed">j = 0 to m-1</tspan>
+							</text>
+						</g>
+						<text x="1800" y="1533" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1800" dy="72" unicode-bidi="embed">Next</tspan>
+						</text>
+						<text x="1278" y="1749" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1278" dy="72" unicode-bidi="embed">Done</tspan>
+						</text>
+					</g>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 1008,2268 L 1008,2412 L 1800,2412 L 1800,2268 Z"/>
+						<text x="1404" y="2289" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1404" dy="72" unicode-bidi="embed">stu[i].aver = stu[i].sum/m</tspan>
+						</text>
+					</g>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 972,2520 L 828,2808 L 1836,2808 L 1980,2520 Z"/>
+						<text x="1404" y="2541" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1404" dy="72" unicode-bidi="embed">Output &quot;student %d: sum =</tspan>
+							<tspan x="1404" dy="72" unicode-bidi="embed"> %.0f,aver = %.0f\n&quot;, i + 1,</tspan>
+							<tspan x="1404" dy="72" unicode-bidi="embed"> stu[i].sum, stu[i].aver</tspan>
+						</text>
+					</g>
+				</g>
+				<g>
+					<path fill="#FFE0A0" stroke="#A08040" stroke-width="5" stroke-dasharray="none" d="M 396,1080 L 324,1152 L 396,1224 L 828,1224 L 900,1152 L 828,1080 Z"/>
+					<text x="612" y="1101" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="612" dy="72" unicode-bidi="embed">i = 0 to n-1</tspan>
+					</text>
+				</g>
+				<text x="1008" y="1029" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="1008" dy="72" unicode-bidi="embed">Next</tspan>
+				</text>
+				<text x="486" y="1245" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="486" dy="72" unicode-bidi="embed">Done</tspan>
+				</text>
+			</g>
+		</g>
+	</g>
+</svg>
--- a/PrintScore.svg
+++ b/PrintScore.svg
@ -0,0 +1,109 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
+
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2263" height="2604">
+	<rect x="0" y="0" width="2263" height="2604" fill="#FFFFFF"/>
+	<g>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,248 372,323"/>
+		<polygon fill="#404040" stroke="none" points="372,341 389,310 354,310"/>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,992 372,2338"/>
+		<polygon fill="#404040" stroke="none" points="372,2356 389,2325 354,2325"/>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 217,124 A 62 62, 0, 0 0, 217 248 L 527,248 A 62 62, 0, 0 0, 527 124 Z"/>
+			<text x="372" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="372" dy="62" unicode-bidi="embed">PrintScore</tspan>
+			</text>
+		</g>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 248,2356 A 62 62, 0, 0 0, 248 2480 L 496,2480 A 62 62, 0, 0 0, 496 2356 Z"/>
+			<text x="372" y="2374" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="372" dy="62" unicode-bidi="embed">End</tspan>
+			</text>
+		</g>
+		<g>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,496 372,571"/>
+			<polygon fill="#404040" stroke="none" points="372,589 389,558 354,558"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,744 372,850"/>
+			<polygon fill="#404040" stroke="none" points="372,868 389,837 354,837"/>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 186,341 L 186,496 L 558,496 L 558,341 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="186,372 558,372"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="217,341 217,496"/>
+				<text x="387" y="390" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Integer i</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 186,589 L 186,744 L 558,744 L 558,589 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="186,620 558,620"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="217,589 217,744"/>
+				<text x="387" y="638" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Integer j</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="620,930 1023,930 1023,1036"/>
+				<polygon fill="#404040" stroke="none" points="1023,1054 1040,1023 1005,1023"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1023,2139 1023,2232 434,2232 434,1009"/>
+				<polygon fill="#404040" stroke="none" points="434,992 416,1022 451,1022"/>
+				<g>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1023,1240 1023,1346"/>
+					<polygon fill="#404040" stroke="none" points="1023,1364 1040,1333 1005,1333"/>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1023,1488 1023,1935"/>
+					<polygon fill="#404040" stroke="none" points="1023,1953 1040,1922 1005,1922"/>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 682,1054 L 589,1240 L 1364,1240 L 1457,1054 Z"/>
+						<text x="1023" y="1072" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1023" dy="62" unicode-bidi="embed">Output &quot;%ld\t%s\t&quot;, stu[i].</tspan>
+							<tspan x="1023" dy="62" unicode-bidi="embed">num, stu[i].name</tspan>
+						</text>
+					</g>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1271,1426 1674,1426 1674,1532"/>
+						<polygon fill="#404040" stroke="none" points="1674,1550 1691,1519 1656,1519"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1674,1736 1674,1829 1085,1829 1085,1505"/>
+						<polygon fill="#404040" stroke="none" points="1085,1488 1067,1518 1102,1518"/>
+						<g>
+							<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1302,1550 L 1209,1736 L 2046,1736 L 2139,1550 Z"/>
+							<text x="1674" y="1568" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1674" dy="62" unicode-bidi="embed">Output &quot;%.0f\t&quot;, stu[i].score</tspan>
+								<tspan x="1674" dy="62" unicode-bidi="embed">[j]</tspan>
+							</text>
+						</g>
+						<g>
+							<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 837,1364 L 775,1426 L 837,1488 L 1209,1488 L 1271,1426 L 1209,1364 Z"/>
+							<text x="1023" y="1382" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1023" dy="62" unicode-bidi="embed">j = 0 to m-1</tspan>
+							</text>
+						</g>
+						<text x="1364" y="1320" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1364" dy="62" unicode-bidi="embed">Next</tspan>
+						</text>
+						<text x="914" y="1506" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="914" dy="62" unicode-bidi="embed">Done</tspan>
+						</text>
+					</g>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 651,1953 L 558,2139 L 1395,2139 L 1488,1953 Z"/>
+						<text x="1023" y="1971" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1023" dy="62" unicode-bidi="embed">Output &quot;%.0f\t%.0f\n&quot;, stu[i].</tspan>
+							<tspan x="1023" dy="62" unicode-bidi="embed">sum, stu[i].aver</tspan>
+						</text>
+					</g>
+				</g>
+				<g>
+					<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 186,868 L 124,930 L 186,992 L 558,992 L 620,930 L 558,868 Z"/>
+					<text x="372" y="886" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="372" dy="62" unicode-bidi="embed">i = 0 to n-1</tspan>
+					</text>
+				</g>
+				<text x="713" y="824" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="713" dy="62" unicode-bidi="embed">Next</tspan>
+				</text>
+				<text x="263" y="1010" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="263" dy="62" unicode-bidi="embed">Done</tspan>
+				</text>
+			</g>
+		</g>
+	</g>
+</svg>
--- a/README.md
+++ b/README.md
@ -1,43 +1,517 @@
 # 学习成绩管理系统

-## 系统介绍
-本成绩管理系统是为教师提供管理班级成绩的工具，该系统可以实现的对学生的成绩进行增、删、改、查、信息保存和信息导入等基本信息，以及对学生成绩排序和分段的扩展功能，有利于对学生成绩管理。
+2023年4月17日-5月1日

-## 设计思想
-利用结构体——定义STU结构体存储学生学号、姓名、各科成绩、总成绩和平均成绩，利用文件来存储，读取数据。
+李雨佳 徐子贵 许子林 张宇

-## 功能描述
- 创建学生基本信息，便于之后查询和浏览
+## 项目简介

- 录入各科学习成绩
+本成绩管理系统是为教师提供管理班级成绩的工具，该系统可以实现的对学生的成绩进行增、删、改、查、信息保存和信息导入等基本信息，以及对学生成绩排序和分段的扩展功能，有利于对学生成绩管理。项目采用C语言编程实现，在VS Code 集成开发环境（IDE）中使用GCC进行编译。系统采用模块化设计，程序结构清晰，采用菜单驱动的命令行界面，操作便捷，能够用CSV格式读取和保存数据，通用性强，能够用图表展示数据，直观清楚。

- 计算每个学生各门课程的总分和平均分
+下载地址：https://bdgit.educoder.net/pvfj5ugro/text1.git

- 计算每门课程的总分和平均分
+项目开发过程中采用 Kanban（看板）进行任务管理和分工协作，并使用 Git 对程序代码和文档进行版本管理。任务分工情况如下：

- 按每个学生的总分由高到低排出名次表
+|  任务  |  设计  | 开发 | 测试 | 文档 |
+| ------ | ----- | ----- | -- | ----- |
+| C1-C3 菜单驱动的用户界面 |  许子林 | 许子林 | 李雨佳 张宇 | 徐子贵 |
+| C4 添加学生信息 | 张宇 | 张宇 | 徐子贵 许子林 | 李雨佳 |
+| C5-C6 求和求平均 | 徐子贵 | 徐子贵 | 李雨佳 许子林 | 张宇 |
+| C7-C9 排序 | 李雨佳 | 李雨佳 | 张宇 徐子贵 | 许子林 |
+| C10 学生信息查询 | 张宇 | 张宇 | 李雨佳 徐子贵 | 许子林 |
+| C11 统计学生信息 | 徐子贵 | 徐子贵 | 许子林 张宇 | 李雨佳 |
+| C12 打印学生信息 | 许子林 | 许子林 | 李雨佳 张宇 | 徐子贵 |
+| C13 将学生信息读入文件 | 李雨佳 | 李雨佳 | 许子林 徐子贵 | 张宇 |
+| C14 从文件中读取学生信息 | 李雨佳 | 李雨佳 | 张宇 徐子贵 | 许子林 |

- 按每个学生的总分由低到高排出名次表
+每个成员的工作量（百分比）：
+ 
+| 李雨佳 | 徐子贵 | 许子林 | 张宇 |
+| ------ | ----- | ------ | --- |
+|30      |  30    |  20    | 20  |

- 按学号由小到大排出成绩表
+## 关于学生成绩管理系统

- 按姓名的字母顺序排出成绩表
+设计一个学生成绩管理系统，要求采用行菜单界面进行交互，具备读取、保存、打印、查询、插入和排序等基本功能，能够以表格和图表形式展示数据，采用CSV格式保存数据。

- 按学号查询学生排名及其考试成绩
+系统的功能性需求：

- 按姓名查询学生排名及考试成绩
+- 数据的读取、保存、打印、查询、插入、排序和图表展示。

- 按优秀（90-100）、良好（80-89）、中等（70-79）、及格（60-69）、不及格（0-59）5个类别，对每门课程分别统计每个类别的人数以及所占的百分比
+系统的非功能性需求：

- 输出每个学生的学号、姓名、各科考试成绩、以及每门课程的总分和平均分
+- 菜单驱动的命令行交互界面

- 将每个学生的记录信息写入文件
+## 需求分析

- 从文件中读出每个学生的记录信息并显示
+分析系统的功能需求和界面需求，编制用户手册如下。

-## 功能设计
+### C1: 启动程序

-### 基本框架
+命令行中执行命令./app,系统启动，显示提示信息，然后显示功能菜单，等待用户输入命令。
+
+```
+Management for Students'scores
+
+1  Input record
+2  Calculate total and average score of every course
+3  Calculate total and average score of every student
+4  Sort in descending order by score
+5  Sort in ascending order by score
+6  Sort in ascending order by number
+7  Sort in dictionary order by name
+8  Search by number
+9  Search by name
+10 Statistic analysis
+11 List record
+12 Write to a file
+13 Read from a file
+0  Exit
+
+Please Input your choice:  
+
+```
+
+### C2: 显示命令菜单
+
+调用 Menu() 函数显示命令菜单，用户输入选项后，将结果返回主函数
+
+```
+Management for Students'scores
+
+1 Input record
+2 Calculate total and average score of every course
+3 Calculate total and average score of every student
+4 Sort in descending order by score
+5 Sort in ascending order by score
+6 Sort in ascending order by number
+7 Sort in dictionary order by name
+8 Search by number
+9 Search by name
+10 Statistic analysis
+11 List record
+12 Write to a file
+13 Read from a file
+0  Exit
+
+Please Input your choice:   
+
+```
+
+### C3: 退出程序
+
+选择菜单命令 0 ，再输入 y 确认，则退出程序。
+
+```
+Please Input your choice: 0
+Are you sure you want to exit?(Y/N): y
+End of program!
+
+```
+
+### C4: 添加学生信息
+
+选择菜单命令 1 ，假设n=4,m=3,提示输入学生的学号，姓名和成绩，然后利用循环逐个输入学生的学号和姓名以及各科成绩。
+
+```
+Please Input your choice: 1
+Input student's ID, name and score:
+2214111006 XuZilin 100 95 86
+2214111009 XuZigui 77 89 99
+2214111011 ZhangYu 85 91 98
+2214111025 LiYujia 75 89 100
+
+```
+
+### C5: 计算学生各门课程总分和平均分
+
+选择菜单命令 2 ，计算学生各门课程总分和平均分,然后利用循环逐个输出学生的顺序，总成绩和平均分，结果都取整数。
+
+```
+Please Input your choice: 2
+student 1: sum = 281, aver = 93
+student 2: sum = 265, aver = 88
+student 3: sum = 274, aver = 91
+student 4: sum = 264, aver = 88
+
+```
+
+### C6: 计算每门课程的总分和平均分
+
+选择菜单命令 3 ，计算每门课程的总分和平均分，然后利用循环逐个输出每门课程的总分和平均分，结果都取整数。
+
+```
+Please Input your choice: 3
+course 1: sum = 337, aver = 84
+course 2: sum = 364, aver = 91
+course 3: sum = 383, aver = 95
+
+```
+
+### C7: 学生总分排序
+
+如果a < b,则按升序排列。选择菜单命令 4 ，按选择法将数组 sum 的元素值按升序进行排序，显示提示信息，最后打印出学生信息。
+如果a > b,则按降序排序。选择菜单命令 5 ，按选择法将数组 sum 的元素值按降序进行排序，显示提示信息，最后打印出学生成绩。
+
+```
+Please Input your choice: 4
+Sort in descending order by score:
+2214111006 XuZilin 100 95 86 281 93
+2214111011 ZhangYu 85 91 98 274 91
+2214111009 XuZigui 77 89 99 265 88
+2214111025 LiYujia 75 89 100 264 88
+
+Please Input your choice: 5
+Sort in ascending order by score:
+2214111025 LiYujia 75 89 100 264 88
+2214111009 XuZigui 77 89 99 265 88
+2214111011 ZhangYu 85 91 98 274 91
+2214111006 XuZilin 100 95 86 281 93
+
+```
+
+### C8: 学号顺序排序
+
+选择菜单命令 6 ，按学号从小到大进行排序，显示提示信息，最后打印学生信息。
+```
+Please Input your choice: 6
+Sort in ascending order by number:
+2214111006 XuZilin 100 95 86 281 93
+2214111009 XuZigui 77 89 99 265 88
+2214111011 ZhangYu 85 91 98 274 91
+2214111025 LiYujia 75 89 100 264 88
+
+```
+
+### C9: 姓名顺序排序
+
+选择菜单命令 7 ，按姓名的字典顺序进行排序，显示提示信息，最后打印学生信息。
+
+```
+Please Input your choice: 7
+Sort in dictionary order by name:
+2214111025 LiYujia 75 89 100 264 88
+2214111009 XuZigui 77 89 99 265 88
+2214111006 XuZilin 100 95 86 281 93
+2214111011 ZhangYu 85 91 98 274 91
+
+```
+
+### C10: 学生信息查询
+
+- 选择菜单命令 8 ，提示输入学生学号，若该学号存在，则输出学生信息；否则提示没有找到并结束。
+
+```
+Please Input your choice: 8
+Input the number you want to search:2214111011
+2214111011 ZhangYu 85 91 98 274 91
+
+1 Input record
+2 Calculate total and average score of every course
+3 Calculate total and average score of every student
+4 Sort in descending order by score
+5 Sort in ascending order by score
+6 Sort in ascending order by number
+7 Sort in dictionary order by name
+8 Search by number
+9 Search by name
+10 Statistic analysis
+11 List record
+12 Write to a file
+13 Read from a file
+0  Exit
+
+Please Input your choice: 8
+Input the number you want to search:2214111001
+Not found!
+
+```
+
+- 选择菜单命令 9 ，提示输入学生姓名，若该姓名存在，则输出学生信息；否则提示没有找到并结束。
+
+```
+Please Input your choice: 9
+Input the name you want to search:LiYujia
+2214111025 LiYujia 75 89 100 264 88
+
+1 Input record
+2 Calculate total and average score of every course
+3 Calculate total and average score of every student
+4 Sort in descending order by score
+5 Sort in ascending order by score
+6 Sort in ascending order by number
+7 Sort in dictionary order by name
+8 Search by number
+9 Search by name
+10 Statistic analysis
+11 List record
+12 Write to a file
+13 Read from a file
+0  Exit
+
+Please Input your choice: 9
+Input the name you want to search:SunYizhe
+Not found!
+
+```
+
+### C11: 统计各分数段学生人数及所占百分比
+
+选择菜单命令 10，提示输入学生成绩，通过循环得出各分数段学生人数及所占百分比
+
+```
+Please Input your choice: 10
+For course 1:
+<60 0 0.00%
+60-70 0 0.00%
+70-80 2 50.00%
+80-90 1 25.00%
+90-100 0 0.00%
+100 1 25.00%
+For course 2:
+<60 0 0.00%
+60-70 0 0.00%
+70-80 0 00.00%
+80-90 2 50.00%
+90-100 2 50.00%
+100 0 0.00%
+For course 3:
+<60 0 0.00%
+60-70 0 0.00%
+70-80 0 0.00%
+80-90 1 25.00%
+90-100 2 50.00%
+100 1 25.00%
+
+```
+### C12: 打印学生信息
+
+选择菜单命令11，打印
+
+```
+Please Input your choice: 11
+2214111006 XuZilin 100 95 86 281 93
+2214111009 XuZigui 77 89 99 265 88
+2214111011 ZhangYu 85 91 98 274 91
+2214111025 LiYujia 75 89 100 264 88
+
+```
+
+### C13: 将学生信息保存在文件中
+
+选择菜单命令 12 ，将学生信息保存在文件 student.txt 中。如果文件不存在，则给出错误信息并退出程序，否则逐个读入
+
+```
+Please Input your choice: 12
+Failure to open score.txt!
+
+1 Input record
+2 Calculate total and average score of every course
+3 Calculate total and average score of every student
+4 Sort in descending order by score
+5 Sort in ascending order by score
+6 Sort in ascending order by number
+7 Sort in dictionary order by name
+8 Search by number
+9 Search by name
+10 Statistic analysis
+11 List record
+12 Write to a file
+13 Read from a file
+0  Exit
+
+Please Input your choice: 12
+2214111006 XuZilin 100 95 86 281 93
+2214111009 XuZigui 77 89 99 265 88
+2214111011 ZhangYu 85 91 98 274 91
+2214111025 LiYujia 75 89 100 264 88
+
+```
+
+### C14：从文件中读取学生信息
+
+选择菜单命令 13 ，从文件中读取学生的学号、姓名及成绩等信息写入到结构体数组 stu 中。如果文件为空，则给出错误信息并退出程序，反之，逐个读入
+
+```
+Please Input your choice: 13
+Failure to open score.txt!
+
+1 Input record
+2 Calculate total and average score of every course
+3 Calculate total and average score of every student
+4 Sort in descending order by score
+5 Sort in ascending order by score
+6 Sort in ascending order by number
+7 Sort in dictionary order by name
+8 Search by number
+9 Search by name
+10 Statistic analysis
+11 List record
+12 Write to a file
+13 Read from a file
+0  Exit
+
+Please Input your choice: 13
+2214111006 XuZilin 100 95 86 281 93
+2214111009 XuZigui 77 89 99 265 88
+2214111011 ZhangYu 85 91 98 274 91
+2214111025 LiYujia 75 89 100 264 88
+
+```
+
+## 概要设计
+
+系统主要分为用户界面和数据处理两大模块。
+用户界面模块包括系统初始化（init），显示菜单（display_menu），选择菜单命令（make_choice）、确认（confirm）、退出（quit）等子模块。
+数据处理模块包括读取数据（read_data）、保存数据（save_data）、打印数据（print_data）、查询数据（query_data）、添加数据（add_data）、更新数据（update_data）、删除数据（delete_data）、数据排序（sort_data）和生成图表（make_chart）等子模块。其中查询、添加、更
+新和删除数据还会用到根据编号查询数据的方法（find）。
+
+上述各模块通过主程序（main）进行调用，系统模块图如下。
+
+![系统模块图](main.drawio.svg)
+
+各模块的主要功能如下：
+
+#### main
+
+系统主函数模块，显示菜单，根据用户选择的菜单命令，执行相关操作。
+
+#### init
+
+系统初始化
+
+#### menu
+
+显示菜单命令
+
+## 详细设计
+
+针对概要设计
+
+#### main
+
+Step 1:初始化
+Step 2:根据用户选择的命令执行相应的操作
+Step 2.1:显示菜单
+Step 2.2:选择菜单命令 c
+Step 2.3:if c == 1 then ReadScore
+Step 2.4:if c == 2 then AverSumofEveryStudent
+Step 2.5:if c == 3 then AverSumofEveryCourse
+Step 2.6:if c == 4 then SortbyScore(Descending)
+Step 2.7:if c == 5 then SortbyScore(Ascending)
+Step 2.8:if c == 6 then AsSortbyNum
+Step 2.9:if c == 7 then SortbyName
+Step 2.10:if c == 8 then SearchbyNum
+Step 2.11:if c == 9 then SearchbyName
+Step 2.12:if c == 10 then StatisticAnalysis
+Step 2.13:if c == 11 then PrintScore
+Step 2.14:if c == 12 then WritetoFile
+Step 2.15:if c == 13 then ReadfromFile
+Step 2.16:if c == 0 then exit
+
+![系统模块图](main函数详细实现.drawio.svg)
+
+#### ReadScore
+
+Step 1:显示提示信息，要求输入学生的学号，姓名和成绩
+Step 2：利用循环，输入学生的学号，成绩和各科成绩
+
+![学生信息输入](ReadScore.svg)
+
+#### AverSumofEveryStudent
+
+Step 1:利用for循环给 sum 赋初值为 0
+Step 2:利用第二重循环重新计算每个学生的总分
+Step 3:计算每个学生的平均分
+Step 4:将结果按照顺序，总分和平均分的顺序进行输出
+
+![计算每个学生各门课程的总分和平均分](AverSumofEveryStudent.svg)
+
+#### AverSumofEveryCourse
+
+Step 1:利用for循环给 sum 赋初值为 0
+Step 2:利用第二重循环重新计算每门课程的总分
+Step 3:计算每门课程的平均分
+Step 4:将结果按照顺序，总分和平均分的顺序进行输出
+
+![计算每门课程的总分和平均分](AverSumofEveryCourse.svg)
+
+#### SortbyScore
+
+Step 1:利用循环将i赋值给k
+Step 2:用循环从i+1到n-1比较,将较小的赋给k
+Step 3:如果k与i不相等，每一课的成绩交换
+Step 4:总分，平均分，学号，姓名依次交换
+
+![按选择法将数组 sum 的元素值排序](SortbyScore.svg)
+
+#### AsSortbyNum
+
+Step 1:利用循环将i赋值给k
+Step 2:用循环从i+1到n-1比较,将较小的学号赋给k
+Step 3:如果k与i不相等，每一课的成绩交换
+Step 4:总分，平均分，学号，姓名依次交换
+
+![按选择法将数组 num 的元素从低到高排序](AsSortbyNum.svg)
+
+#### SortbyName
+
+Step 1:利用for循环将相邻的两个姓名作比较
+Step 2:如果前一个字符串大于后一个，利用for循环交换m门课程的成绩
+Step 3:依次交换
+
+![交换法实现字符串按字典顺序排序](SortbyName.svg)
+
+#### SearchbyNum
+
+Step 1:利用for循环给 i 赋值为 0
+Step 2:利用 if 条件判断学号是否一致
+Step 3:利用二次循环找出所有符合条件的学生
+Step 4:利用if条件语句能否找到该学生
+![按学号查找学生成绩并显示查找结果](SearchbyNum.svg)
+
+#### SearchbyName
+
+Step 1:利用for循环给 i 赋值为 0
+Step 2:利用 if 条件和循环判断是否有此学生并显示结果
+
+![按姓名查找学生成绩并显示查找结果](SearchbyName.svg)
+
+#### StatisticAnalysis
+
+Step 1:将数组 t 的全部元素初始化为0
+Step 2:利用循环和if条件统计各分数段学生人数
+Step 3:利用循环和if条件统计各分数段学生所占比结果
+
+![统计各分数段的学生人数及所占的百分比](StatisticAnalysis.svg)
+
+#### PrintScore
+
+Step 1:利用for循环输出学生的学号和姓名
+Step 2:利用二次循环输出每位学生的成绩
+Step 3:输出学生的总分数和平均分
+
+![打印学生成绩](PrintScore.svg)
+
+#### WritetoFile
+
+Step 1:读取文件输出学生人数和课程门数
+Step 2:利用循环for依次输出学生学号和姓名
+Step 3:利用二次循环输出学生成绩
+Step 4:输出总成绩和平均分
+
+![输出n个学生的学号，姓名以及m门课程的成绩](-WritetoFile.svg)
+
+#### ReadfromFile
+Step 1:从文件中读取学生人数和课门数
+Step 2:利用循环for输入学生学号和姓名
+Step 3:利用二次循环输入学生成绩
+Step 4:输入学生总成绩和平均分
+
+![从文件中读取学生的学号，姓名及成绩等信息写入结构体](ReadfromFile.svg)
+#### exit
+
+## 代码实现

 // 头文件的使用

@ -98,7 +572,7 @@ int main(void)
    int n = 0,m = 0;
    STU stu[STU_NUM];
    printf("Input student number(n<%d):",STU_NUM);
-    scnaf("%d",&n);
+    scanf("%d",&n);
    printf("Input course number(m<=%d):",COURSE_NUM);
    scanf("%d",&m);
    while(1)
@ -112,7 +586,7 @@ int main(void)
                    break;
            case 3:AverSumofEveryStudent(stu,n,m);
                    break;
-            case 4:SortbyScore(stu,n,m,Ascending);
+            case 4:SortbyScore(stu,n,m,Descending);
                   printf("\nSort in descending order by score:\n");
                   PrintScore(stu,n,m);
                   break;
@ -140,7 +614,8 @@ int main(void)
                    break;
            case 13:ReadfromFile(stu,&n,&m);
                    break;
-            case 0:printf("End of program!);
+            case 0: printf("Are you sure you want to exit?(Y/N):");
+                    printf("End of program!");
                    exit(0);
            default:printf("Input error!");
        }
@ -153,168 +628,305 @@ int main(void)
 ```
 int Menu(void)
 {
-
+   set itemSelected
+   printf "Management for Students' scores\n"
+   printf "1 Input record\n"
+   printf "2 Calculate total and average score of every course\n"
+   printf "3 Calculate total and average score of every student\n"
+   printf "4 Sort in descending order by score\n"
+   printf "5 Sort in ascending order by score\n"
+   printf "6 Sort in ascending order by number\n"
+   printf "7 Sort in dictionary order by name\n"
+   printf "8 Search by number\n"
+   printf "9 Search by name\n"
+   printf "10 Statistic analysis\n"
+   printf "11 List record\n"
+   printf "12 Write to a file\n"
+   printf "13 Read from a file\n"
+   printf "0 Exit\n"
+   printf "Please Input your choice:"
+   input itemSelected    //读入用户输入
+   return itemSelected
 }
 ```

 // 函数功能：输入 n 个学生的 m 门课成绩
 ```
-void ReadScore(STU stu[],int n,int m)
-{
+function ReadScore(STU stu[],int n,int m) do
+
+     int i,j;
+     printf "Input student's ID ,name and score:\n"
+     for from i=0 to n-1 do     //输入n个同学
+
+        input stu[i].num,stu[i].name 
+        for form j=0 to m-1 do      //输入m门成绩
+        input stu[i].score[j]
+        end
+     end
+end

-}
 ```

 //函数功能：计算每个学生各门课程的总分和平均分
 ```
-void AverSumofEveryStudent(STU stu[],int n,int m)
-{
-
-}
+function AverSumofEveryStudent(STU stu[],int n,int m) do
+   int i,j;
+   for form i=0 to n-1 do 
+        stu[i].sum = 0;   //初始化每个学生总分为0
+        for from j=0 to m-1 do
+                stu[i].sum = stu[i].sum + stu[i].score[j];    //累加分数
+        end
+        stu[i].aver = m>0 ? stu[i].sum /m : -1;   
+        printf "student %d: sum = %.0f,aver = %.0f\n"
+   end
+end
 ```

 //函数功能：计算每门课程的总分和平均分
 ```
-void AverSumofEveryCourse(STU stu[],int n,int m)
-{
-
-}
+function AverSumofEveryCourse(STU stu[],int n,int m) do
+    int i,j;
+    float sum[COURSE_NUM],aver[COURSE_NUM];
+    for from j=0 to m-1 do
+        sum[j] = 0;
+        for from i=0 to n-1 do
+                sum[j]+= stu[i].score[j];   //计算n个同学每门课程的总分
+        end
+        aver[j] = sum[j]/i;
+        printf "course %d: sum = %.0f,aver = %.0f\n"
+    end
+end
 ```

 //函数功能：按选择法将数组 sum 的元素值排序
 ```
-voidSortbyScore(STU stu[],int n,int m,int(*compare)(float a,float b))
-{
-
-}
+function SortbyScore(STU stu[],int n,int m,int(*compare)(float a,float b)) do
+	int  i, j, k, t;
+	for from i=0 to n-2 do
+		k = i;
+		for from i+1 to n-1 do
+		if (*compare)(stu[j].sum, stu[k].sum) set k = j;
+		end
+		if k != i		   
+		   for from t=0 to m-1 do        //交换m门课程的成绩
+                      SwapFloat(&stu[k].score[t], &stu[i].score[t]);
+                    end
+SwapFloat(&stu[k].sum, &stu[i].sum);    //交换总分 
+SwapFloat(&stu[k].aver, &stu[i].aver);  //交换平均分
+SwapLong(&stu[k].num, &stu[i].num);     //交换学号 
+SwapChar(stu[k].name, stu[i].name);     //交换姓名
+		end
+	end
+end
 ```

 //使数据按升序排序
 ```
-int Ascending(float a,float b)
-{
+function  Ascending(float a,float b) do
        return a < b;    //这样比较决定了按升序排序，如果a<b，则交换
-}
+end
 ```

 //使数据按降序排序
 ```
-int Descending(float a,float b)
-{
+function  Descending(float a,float b) do
        return a > b;    // 这样比较决定了按降序排序，如果 a>b，则交换
-}
+end
 ```

 //交换两个单精度浮点型数据
 ```
-void SwapFloat(float *x,float *y)
-{
+function SwapFloat(float *x,float *y) do
        float  temp;
        temp = *x;
        *x = *y;
        *y = temp;
-}
+end
 ```

 //交换两个长整型数据
 ```
-void SwapLong(long *x,long *y)
-{
+function SwapLong(long *x,long *y) do
        long temp;
        temp = *x;
        *x = *y;
        *y = temp;
-}
+end
 ```

 //交换两个字符串
 ```
-void SwapChar(char x[],chary[])
-{
+function SwapChar(char x[],char y[]) do
        char temp[MAX_LEN];
        strcpy(temp, x);
        strcpy(x, y);
        strcpy(y, temp);
-}
+end
 ```

 //函数功能：按选择法将数组 num 的元素从低到高排序
 ```
-void AsSortbyNum(STU stu[],int n,int m)
-{
-
-}
+function AsSortbyNum(STU stu[],int n,int m) do
+     	int  i, j, k, t;
+	for from i=0 to n-2 do
+			int  i, j, k, t;
+		set k = i;
+		for from j=i+1 to n-1 do
+		if stu[j].num < stu[k].num set k = j;
+		end
+		if k != i do		   
+		   for from t=0 to m-1 do        //交换m门课程的成绩
+                      SwapFloat(&stu[k].score[t], &stu[i].score[t]);
+                    end
+SwapFloat(&stu[k].sum, &stu[i].sum);    //交换总分 
+SwapFloat(&stu[k].aver, &stu[i].aver);  //交换平均分
+SwapLong(&stu[k].num, &stu[i].num);     //交换学号 
+SwapChar(stu[k].name, stu[i].name);     //交换姓名
+		end
+	end
+end
 ```

 //函数功能：交换法实现字符串按字典顺序排序
 ```
-void SortbyName(STU stu[],int n,int m)
-{
-
-}
+function SortbyName(STU stu[],int n,int m) do
+	int  i, j, t;
+	for from i=0 to n-2 do
+		  for from j = i+1 to n-1 do
+			  if strcmp(stu[j].name, stu[i].name) < 0 do			  
+				  for from t=0 to m-1 do   //交换m门课程的成绩
+				      SwapFloat(&stu[i].score[t], &stu[j].score[t]);
+			        end
+SwapFloat(&stu[i].sum, &stu[j].sum);    //交换总分 
+SwapFloat(&stu[i].aver, &stu[j].aver);   //交换平均分
+SwapLong(&stu[i].num, &stu[j].num);     //交换学号 
+SwapChar(stu[i].name, stu[j].name);     //交换姓名
+			  end
+		  end
+	 end
+end
 ```

 //函数功能：按学号查找学生成绩并显示查找结果
 ```
-void SearchbyNum(STU stu[],int n,int m)
-{
-
-}
-```
-
-//函数功能：按姓名的字典顺序排出成绩表
-```
-void SearchbyName(STU stu[],int n,int m)
-{
+function SearchbyNum(STU stu[],int n,int m) do
+        long number;
+        int i,j;
+        printf"Input the number you want to search:"
+        input number
+        forfrom i=0 to n-1 do
+          if stu[i].num==number do
+                printf"\n"
+                for from j=0 to m-1 do
+                  printf "%d\t"
+                printf "\n"
+                break;
+            end
+        if i==n 
+        printf "\nNot found!\n"
+end
+```
+
+//函数功能：按姓名查找学生成绩并显示查找结果
+```
+function SearchbyName(STU stu[],int n,int m) do
    char x[MAX_LEN];
    int i,j;
-    printf("Input the name you want to search:");
-    scanf("%s", x);
-    for(i=0;i<n;i++)
-    {
-        if(strcmp(stu[i].name,x)==0)
-        {
-                printf("%ld\t%s\t",stu[i].num,stu[i].name);
-                for(j=0;j<m;j++)
-                {
-                        printf("%.0f\t",stu[i].score[j]);
-                }
-                printf(".0f\t%.0f\n",stu[i].sum,stu[i].aver);
+    printf "Input the name you want to search:"
+    input x
+    for from i=0 to n-1 do
+        if strcmp(stu[i].name,x)==0 do
+                printf "%ld\t%s\t",stu[i].num,stu[i].name"
+                for from j=0 to m-1 do
+                        printf "%.0f\t"
+                end
+                printf ".0f\t%.0f\n"
                return;
-        }
-    }
-    printf("\nNot found!\n);
-}
+        end
+    end
+    printf "\nNot found!\n"
+end
 ```

 //函数功能：统计各分数段的学生人数及所占的百分比
 ```
-void StatisticAnalysis(STU stu[],int n,int m)
-{
+funtion StatisticAnalysis(STU stu[],int n,int m) do
+        int i,j,t[6];
+        for from j=0 do m-1 do
+                printf "For course %d:\n"
+                memset(t,0,sizeof(t));        //将数组 t 的全部元素初始化为0
+                for from i=0 to n-1 do
+                        if stu[i].score[j]>=0&&stu[i].score[j]<60 set t[0]++
+                        else if stu[i].score[j]<70   set t[1]++;
+                        else if stu[i].score[j]<80   set t[2]++;
+                        else if stu[i].score[j]<90   set t[3]++;
+                        else if stu[i].score[j]<100  set t[4]++;
+                        else if stu[i].score[j]==100 set t[5]++;
+                end
+                for from i=0 to 4 do
+                        if i==0 printf "<60\t%d\t%.2f%%\n"
+                        else if i==5 printf "%d\t%d\t%.2f%%\n"
+                        else printf "%d-%d\t%d\t%.2f%%\n"
+                end
+        end
+end

-}
 ```

 //函数功能：打印学生成绩
 ```
-void PrintScore(STU stu[],int n,int m)
-{
-
-}
+function PrintScore(STU stu[],int n,int m) do
+        int i,j;
+        for from i=0 to n-1 do
+                printf "%ld\t%s\t"
+                for from j=0 to m-1 do
+                        printf "%.0f\t"
+                end
+                printf "%.0f\t%.0f\n"
+        end
+end
 ```

 //输出 n 个学生的学号、姓名及 m 门课程的成绩到文件 student.txt 中
 ```
-void WritetoFile(STU stu[],int n,int m)
-{
-
-}
+function WritetoFile(STU stu[],int n,int m) do
+        FILE *fp;
+        int i, j;
+
+        if fp = fopen("student.txt","w") == NULL do
+                printf "Failure to open score.txt!\n"
+                exit(0);
+        end
+        fprintf(fp, "%d\t%d\n", n, m);    //将学生人数和课程门数写入文件
+        for from i=0 to n-1 do
+                fprintf(fp, "%10ld%10s", stu[i].num, stu[i].name);
+                for from j=0 to m-1 do
+                        fprintf(fp, "%10.0f", stu[i].score[j]);
+                end
+                fprintf(fp, "%10.0f%10.0f\n", stu[i].sum, stu[i].aver);
+        end
+        fclose(fp);
+end
 ```

 //从文件中读取学生的学号、姓名及成绩等信息写入到结构体 stu 中
 ```
-void ReadfromFile(STU stu[],int *n,int *m)
-{
-    
-}
+function ReadfromFile(STU stu[],int *n,int *m) do
+    	FILE *fp;
+	int i, j;
+	if fp = fopen("student.txt","r") == NULL do
+		printf "Failure to open score.txt!\n"
+		exit(0);
+	end
+        fscanf(fp, "%d\t%d", n, m); //从文件中读出学生人数，课程门数    
+	for from i=0 to *n-1 do //学生人数保存在n指向的储存单元
+		fscanf(fp, "%10ld", &stu[i].num);
+		fscanf(fp, "%10s", stu[i].name);  
+		for  form j=0 to *m-1 do //课程门数保存在m指向的储存单元
+			fscanf(fp, "%10f", &stu[i].score[j]);          //不能用%10.0f
+		end
+		fscanf(fp, "%10f%10f", &stu[i].sum, &stu[i].aver);  //不能用%10.0f
+	end
+	fclose(fp);	
+end
 ```
--- a/ReadScore.svg
+++ b/ReadScore.svg
@ -0,0 +1,116 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
+
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2412" height="3204">
+	<rect x="0" y="0" width="2412" height="3204" fill="#FFFFFF"/>
+	<g>
+		<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="684,360 684,447"/>
+		<polygon fill="#404040" stroke="none" points="684,468 704,433 663,433"/>
+		<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="684,1548 684,2895"/>
+		<polygon fill="#404040" stroke="none" points="684,2916 704,2881 663,2881"/>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="5" stroke-dasharray="none" d="M 360,144 A 108 108, 0, 0 0, 360 360 L 1008,360 A 108 108, 0, 0 0, 1008 144 Z"/>
+			<text x="684" y="165" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="684" dy="72" unicode-bidi="embed">ReadScore</tspan>
+				<tspan x="684" dy="72" unicode-bidi="embed">(Integer n, Integer m)</tspan>
+			</text>
+		</g>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="5" stroke-dasharray="none" d="M 540,2916 A 72 72, 0, 0 0, 540 3060 L 828,3060 A 72 72, 0, 0 0, 828 2916 Z"/>
+			<text x="684" y="2937" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="684" dy="72" unicode-bidi="embed">End</tspan>
+			</text>
+		</g>
+		<g>
+			<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="684,648 684,735"/>
+			<polygon fill="#404040" stroke="none" points="684,756 704,721 663,721"/>
+			<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="684,936 684,1023"/>
+			<polygon fill="#404040" stroke="none" points="684,1044 704,1009 663,1009"/>
+			<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="684,1260 684,1383"/>
+			<polygon fill="#404040" stroke="none" points="684,1404 704,1369 663,1369"/>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" d="M 468,468 L 468,648 L 900,648 L 900,468 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" points="468,504 900,504"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" points="504,468 504,648"/>
+				<text x="702" y="525" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="702" dy="72" unicode-bidi="embed">Integer i</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" d="M 468,756 L 468,936 L 900,936 L 900,756 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" points="468,792 900,792"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" points="504,756 504,936"/>
+				<text x="702" y="813" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="702" dy="72" unicode-bidi="embed">Integer j</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 252,1044 L 144,1260 L 1116,1260 L 1224,1044 Z"/>
+				<text x="684" y="1065" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="684" dy="72" unicode-bidi="embed">Output &#8220;Input student's ID ,</tspan>
+					<tspan x="684" dy="72" unicode-bidi="embed">name and score:&quot;</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="972,1476 1260,1476 1260,1599"/>
+				<polygon fill="#404040" stroke="none" points="1260,1620 1280,1585 1239,1585"/>
+				<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="1260,2304 1260,2772 756,2772 756,1568"/>
+				<polygon fill="#404040" stroke="none" points="756,1548 735,1582 776,1582"/>
+				<g>
+					<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="1260,1764 1260,1851"/>
+					<polygon fill="#404040" stroke="none" points="1260,1872 1280,1837 1239,1837"/>
+					<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="1260,2016 1260,2139"/>
+					<polygon fill="#404040" stroke="none" points="1260,2160 1280,2125 1239,2125"/>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 972,1620 L 900,1764 L 1548,1764 L 1620,1620 Z"/>
+						<text x="1260" y="1641" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1260" dy="72" unicode-bidi="embed">Input stu[i].num</tspan>
+						</text>
+					</g>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 972,1872 L 900,2016 L 1548,2016 L 1620,1872 Z"/>
+						<text x="1260" y="1893" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1260" dy="72" unicode-bidi="embed">Input stu[i].name</tspan>
+						</text>
+					</g>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="1548,2232 1872,2232 1872,2355"/>
+						<polygon fill="#404040" stroke="none" points="1872,2376 1892,2341 1851,2341"/>
+						<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="1872,2520 1872,2628 1332,2628 1332,2324"/>
+						<polygon fill="#404040" stroke="none" points="1332,2304 1311,2338 1352,2338"/>
+						<g>
+							<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 1548,2376 L 1476,2520 L 2196,2520 L 2268,2376 Z"/>
+							<text x="1872" y="2397" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1872" dy="72" unicode-bidi="embed">Input stu[i].score[j]</tspan>
+							</text>
+						</g>
+						<g>
+							<path fill="#FFE0A0" stroke="#A08040" stroke-width="5" stroke-dasharray="none" d="M 1044,2160 L 972,2232 L 1044,2304 L 1476,2304 L 1548,2232 L 1476,2160 Z"/>
+							<text x="1260" y="2181" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1260" dy="72" unicode-bidi="embed">j = 0 to m-1</tspan>
+							</text>
+						</g>
+						<text x="1656" y="2109" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1656" dy="72" unicode-bidi="embed">Next</tspan>
+						</text>
+						<text x="1134" y="2325" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1134" dy="72" unicode-bidi="embed">Done</tspan>
+						</text>
+					</g>
+				</g>
+				<g>
+					<path fill="#FFE0A0" stroke="#A08040" stroke-width="5" stroke-dasharray="none" d="M 468,1404 L 396,1476 L 468,1548 L 900,1548 L 972,1476 L 900,1404 Z"/>
+					<text x="684" y="1425" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="684" dy="72" unicode-bidi="embed">i = 0 to n-1</tspan>
+					</text>
+				</g>
+				<text x="1080" y="1353" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="1080" dy="72" unicode-bidi="embed">Next</tspan>
+				</text>
+				<text x="558" y="1569" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="558" dy="72" unicode-bidi="embed">Done</tspan>
+				</text>
+			</g>
+		</g>
+	</g>
+</svg>
--- a/ReadfromFile.svg
+++ b/ReadfromFile.svg
@ -0,0 +1,157 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
+
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2821" height="3968">
+	<rect x="0" y="0" width="2821" height="3968" fill="#FFFFFF"/>
+	<g>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="837,248 837,323"/>
+		<polygon fill="#404040" stroke="none" points="837,341 854,310 819,310"/>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="837,2201 837,3702"/>
+		<polygon fill="#404040" stroke="none" points="837,3720 854,3689 819,3689"/>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 651,124 A 62 62, 0, 0 0, 651 248 L 1023,248 A 62 62, 0, 0 0, 1023 124 Z"/>
+			<text x="837" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="837" dy="62" unicode-bidi="embed">ReadfromFile</tspan>
+			</text>
+		</g>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 713,3720 A 62 62, 0, 0 0, 713 3844 L 961,3844 A 62 62, 0, 0 0, 961 3720 Z"/>
+			<text x="837" y="3738" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="837" dy="62" unicode-bidi="embed">End</tspan>
+			</text>
+		</g>
+		<g>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="837,496 837,571"/>
+			<polygon fill="#404040" stroke="none" points="837,589 854,558 819,558"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="837,744 837,819"/>
+			<polygon fill="#404040" stroke="none" points="837,837 854,806 819,806"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="837,1736 837,1811"/>
+			<polygon fill="#404040" stroke="none" points="837,1829 854,1798 819,1798"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="837,1953 837,2059"/>
+			<polygon fill="#404040" stroke="none" points="837,2077 854,2046 819,2046"/>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 651,341 L 651,496 L 1023,496 L 1023,341 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="651,372 1023,372"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="682,341 682,496"/>
+				<text x="852" y="390" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="852" dy="62" unicode-bidi="embed">Integer i</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 651,589 L 651,744 L 1023,744 L 1023,589 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="651,620 1023,620"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="682,589 682,744"/>
+				<text x="852" y="638" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="852" dy="62" unicode-bidi="embed">Integer j</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1271,1085 1488,1085 1488,1377"/>
+				<polygon fill="#404040" stroke="none" points="1488,1395 1505,1364 1470,1364"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1488,1581 1488,1705 885,1705"/>
+				<polygon fill="#404040" stroke="none" points="868,1705 898,1722 898,1687"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="403,1085 155,1085 155,1705 788,1705"/>
+				<polygon fill="#404040" stroke="none" points="806,1705 775,1687 775,1722"/>
+				<g>
+					<path fill="#FFD0D0" stroke="#A07070" stroke-width="4" stroke-dasharray="none" d="M 837,837 L 372,1085 L 837,1333 L 1302,1085 Z"/>
+					<text x="837" y="1010" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="837" dy="62" unicode-bidi="embed">(fp = fopen(&quot;student.txt&quot;,</tspan>
+						<tspan x="837" dy="62" unicode-bidi="embed"> &quot;r&quot;)) == NULL</tspan>
+					</text>
+				</g>
+				<g>
+					<path fill="#D0FFD0" stroke="#70A070" stroke-width="4" stroke-dasharray="none" d="M 1178,1395 L 1085,1581 L 1798,1581 L 1891,1395 Z"/>
+					<text x="1488" y="1413" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="1488" dy="62" unicode-bidi="embed">Output &quot;Failure to open</tspan>
+						<tspan x="1488" dy="62" unicode-bidi="embed"> score.txt!\n&quot;</tspan>
+					</text>
+				</g>
+				<g>
+				</g>
+				<ellipse cx="837" cy="1705" rx="31" ry="31" fill="#FFD0D0" stroke="#A07070" stroke-width="4"/>
+				<text x="1395" y="979" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="1395" dy="62" unicode-bidi="embed">True</tspan>
+				</text>
+				<text x="263" y="979" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="263" dy="62" unicode-bidi="embed">False</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 496,1829 L 434,1953 L 1178,1953 L 1240,1829 Z"/>
+				<text x="837" y="1847" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="837" dy="62" unicode-bidi="embed">Input fp, &quot;%d\t%d&quot;, n, m</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1085,2139 1519,2139 1519,2245"/>
+				<polygon fill="#404040" stroke="none" points="1519,2263 1536,2232 1501,2232"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,3503 1519,3596 899,3596 899,2218"/>
+				<polygon fill="#404040" stroke="none" points="899,2201 881,2231 916,2231"/>
+				<g>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,2387 1519,2462"/>
+					<polygon fill="#404040" stroke="none" points="1519,2480 1536,2449 1501,2449"/>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,2604 1519,2710"/>
+					<polygon fill="#404040" stroke="none" points="1519,2728 1536,2697 1501,2697"/>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,2852 1519,3299"/>
+					<polygon fill="#404040" stroke="none" points="1519,3317 1536,3286 1501,3286"/>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1116,2263 L 1054,2387 L 1922,2387 L 1984,2263 Z"/>
+						<text x="1519" y="2281" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1519" dy="62" unicode-bidi="embed">Input fp, &quot;%10ld&quot;, &amp;stu[i].num</tspan>
+						</text>
+					</g>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1147,2480 L 1085,2604 L 1891,2604 L 1953,2480 Z"/>
+						<text x="1519" y="2498" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1519" dy="62" unicode-bidi="embed">Input fp, &quot;%10s&quot;, stu[i].name</tspan>
+						</text>
+					</g>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1767,2790 2201,2790 2201,2896"/>
+						<polygon fill="#404040" stroke="none" points="2201,2914 2218,2883 2183,2883"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2201,3100 2201,3193 1581,3193 1581,2869"/>
+						<polygon fill="#404040" stroke="none" points="1581,2852 1563,2882 1598,2882"/>
+						<g>
+							<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1798,2914 L 1705,3100 L 2604,3100 L 2697,2914 Z"/>
+							<text x="2201" y="2932" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="2201" dy="62" unicode-bidi="embed">Input fp, &quot;%10f&quot;, &amp;stu[i].score</tspan>
+								<tspan x="2201" dy="62" unicode-bidi="embed">[j]</tspan>
+							</text>
+						</g>
+						<g>
+							<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 1333,2728 L 1271,2790 L 1333,2852 L 1705,2852 L 1767,2790 L 1705,2728 Z"/>
+							<text x="1519" y="2746" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1519" dy="62" unicode-bidi="embed">j = 0 to m-1</tspan>
+							</text>
+						</g>
+						<text x="1860" y="2684" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1860" dy="62" unicode-bidi="embed">Next</tspan>
+						</text>
+						<text x="1410" y="2870" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1410" dy="62" unicode-bidi="embed">Done</tspan>
+						</text>
+					</g>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1116,3317 L 1023,3503 L 1922,3503 L 2015,3317 Z"/>
+						<text x="1519" y="3335" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1519" dy="62" unicode-bidi="embed">Input fp, &quot;%10f%10f&quot;, &amp;stu[i].</tspan>
+							<tspan x="1519" dy="62" unicode-bidi="embed">sum, &amp;stu[i].aver</tspan>
+						</text>
+					</g>
+				</g>
+				<g>
+					<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 651,2077 L 589,2139 L 651,2201 L 1023,2201 L 1085,2139 L 1023,2077 Z"/>
+					<text x="837" y="2095" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="837" dy="62" unicode-bidi="embed">i = 0 to n-1</tspan>
+					</text>
+				</g>
+				<text x="1178" y="2033" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="1178" dy="62" unicode-bidi="embed">Next</tspan>
+				</text>
+				<text x="728" y="2219" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="728" dy="62" unicode-bidi="embed">Done</tspan>
+				</text>
+			</g>
+		</g>
+	</g>
+</svg>
--- a/SearchbyName.svg
+++ b/SearchbyName.svg
@ -0,0 +1,165 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
+
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2945" height="4092">
+	<rect x="0" y="0" width="2945" height="4092" fill="#FFFFFF"/>
+	<g>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,310 589,385"/>
+		<polygon fill="#404040" stroke="none" points="589,403 606,372 571,372"/>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,3751 589,3826"/>
+		<polygon fill="#404040" stroke="none" points="589,3844 606,3813 571,3813"/>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 310,124 A 93 93, 0, 0 0, 310 310 L 868,310 A 93 93, 0, 0 0, 868 124 Z"/>
+			<text x="589" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="589" dy="62" unicode-bidi="embed">SearchbyName</tspan>
+				<tspan x="589" dy="62" unicode-bidi="embed">(Integer n, Integer m)</tspan>
+			</text>
+		</g>
+		<g>
+			<path fill="#E0E0E0" stroke="#505050" stroke-width="4" stroke-dasharray="none" d="M 403,3844 A 62 62, 0, 0 0, 403 3968 L 775,3968 A 62 62, 0, 0 0, 775 3844 Z"/>
+			<text x="589" y="3862" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="589" dy="62" unicode-bidi="embed">Return Integer </tspan>
+			</text>
+		</g>
+		<g>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,558 589,633"/>
+			<polygon fill="#404040" stroke="none" points="589,651 606,620 571,620"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,806 589,881"/>
+			<polygon fill="#404040" stroke="none" points="589,899 606,868 571,868"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,1054 589,1129"/>
+			<polygon fill="#404040" stroke="none" points="589,1147 606,1116 571,1116"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,1333 589,1408"/>
+			<polygon fill="#404040" stroke="none" points="589,1426 606,1395 571,1395"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,1550 589,1656"/>
+			<polygon fill="#404040" stroke="none" points="589,1674 606,1643 571,1643"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,1798 589,3609"/>
+			<polygon fill="#404040" stroke="none" points="589,3627 606,3596 571,3596"/>
+			<g>
+				<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 310,403 L 310,558 L 868,558 L 868,403 Z"/>
+				<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="310,434 868,434"/>
+				<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="341,403 341,558"/>
+				<text x="604" y="452" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="604" dy="62" unicode-bidi="embed">String x[MAX_LEN]</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 403,651 L 403,806 L 775,806 L 775,651 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="403,682 775,682"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="434,651 434,806"/>
+				<text x="604" y="700" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="604" dy="62" unicode-bidi="embed">Integer i</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 403,899 L 403,1054 L 775,1054 L 775,899 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="403,930 775,930"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="434,899 434,1054"/>
+				<text x="604" y="948" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="604" dy="62" unicode-bidi="embed">Integer j</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 217,1147 L 124,1333 L 961,1333 L 1054,1147 Z"/>
+				<text x="589" y="1165" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="589" dy="62" unicode-bidi="embed">Output Input the name you</tspan>
+					<tspan x="589" dy="62" unicode-bidi="embed"> want to search:</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 434,1426 L 372,1550 L 744,1550 L 806,1426 Z"/>
+				<text x="589" y="1444" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="589" dy="62" unicode-bidi="embed">Input %s</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="837,1736 1457,1736 1457,1842"/>
+				<polygon fill="#404040" stroke="none" points="1457,1860 1474,1829 1439,1829"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1457,3410 1457,3503 651,3503 651,1815"/>
+				<polygon fill="#404040" stroke="none" points="651,1798 633,1828 668,1828"/>
+				<g>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1860,2077 2077,2077 2077,2338"/>
+					<polygon fill="#404040" stroke="none" points="2077,2356 2094,2325 2059,2325"/>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2077,3255 2077,3379 1505,3379"/>
+					<polygon fill="#404040" stroke="none" points="1488,3379 1518,3396 1518,3361"/>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1054,2077 806,2077 806,3379 1408,3379"/>
+					<polygon fill="#404040" stroke="none" points="1426,3379 1395,3361 1395,3396"/>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1457,1860 L 1023,2077 L 1457,2294 L 1891,2077 Z"/>
+						<text x="1457" y="2033" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1457" dy="62" unicode-bidi="embed">strcmp(stu[i].name, x) == 0</tspan>
+						</text>
+					</g>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2077,2480 2077,2586"/>
+						<polygon fill="#404040" stroke="none" points="2077,2604 2094,2573 2059,2573"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2077,2728 2077,3113"/>
+						<polygon fill="#404040" stroke="none" points="2077,3131 2094,3100 2059,3100"/>
+						<g>
+							<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1829,2356 L 1767,2480 L 2325,2480 L 2387,2356 Z"/>
+							<text x="2077" y="2374" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="2077" dy="62" unicode-bidi="embed">Output %ld\t%s\t</tspan>
+							</text>
+						</g>
+						<g>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2325,2666 2542,2666 2542,2772"/>
+							<polygon fill="#404040" stroke="none" points="2542,2790 2559,2759 2524,2759"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2542,2914 2542,3007 2139,3007 2139,2745"/>
+							<polygon fill="#404040" stroke="none" points="2139,2728 2121,2758 2156,2758"/>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 2325,2790 L 2263,2914 L 2759,2914 L 2821,2790 Z"/>
+								<text x="2542" y="2808" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2542" dy="62" unicode-bidi="embed">Output %.0f\t</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 1891,2604 L 1829,2666 L 1891,2728 L 2263,2728 L 2325,2666 L 2263,2604 Z"/>
+								<text x="2077" y="2622" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2077" dy="62" unicode-bidi="embed">j = 0 to m-1</tspan>
+								</text>
+							</g>
+							<text x="2418" y="2560" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="2418" dy="62" unicode-bidi="embed">Next</tspan>
+							</text>
+							<text x="1968" y="2746" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1968" dy="62" unicode-bidi="embed">Done</tspan>
+							</text>
+						</g>
+						<g>
+							<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1829,3131 L 1767,3255 L 2325,3255 L 2387,3131 Z"/>
+							<text x="2077" y="3149" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="2077" dy="62" unicode-bidi="embed">Output .0f\t%.0f\n</tspan>
+							</text>
+						</g>
+					</g>
+					<g>
+					</g>
+					<ellipse cx="1457" cy="3379" rx="31" ry="31" fill="#C04040" stroke="#602020" stroke-width="4"/>
+					<text x="1984" y="1971" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="1984" dy="62" unicode-bidi="embed">True</tspan>
+					</text>
+					<text x="914" y="1971" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="914" dy="62" unicode-bidi="embed">False</tspan>
+					</text>
+				</g>
+				<g>
+					<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 403,1674 L 341,1736 L 403,1798 L 775,1798 L 837,1736 L 775,1674 Z"/>
+					<text x="589" y="1692" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="589" dy="62" unicode-bidi="embed">i = 0 to n-1</tspan>
+					</text>
+				</g>
+				<text x="930" y="1630" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="930" dy="62" unicode-bidi="embed">Next</tspan>
+				</text>
+				<text x="480" y="1816" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="480" dy="62" unicode-bidi="embed">Done</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 279,3627 L 217,3751 L 899,3751 L 961,3627 Z"/>
+				<text x="589" y="3645" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="589" dy="62" unicode-bidi="embed">Output \nNot found!\n</tspan>
+				</text>
+			</g>
+		</g>
+	</g>
+</svg>
--- a/SearchbyNum.svg
+++ b/SearchbyNum.svg
@ -0,0 +1,195 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
+
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2728" height="4712">
+	<rect x="0" y="0" width="2728" height="4712" fill="#FFFFFF"/>
+	<g>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,310 558,385"/>
+		<polygon fill="#404040" stroke="none" points="558,403 575,372 540,372"/>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,4371 558,4446"/>
+		<polygon fill="#404040" stroke="none" points="558,4464 575,4433 540,4433"/>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 279,124 A 93 93, 0, 0 0, 279 310 L 837,310 A 93 93, 0, 0 0, 837 124 Z"/>
+			<text x="558" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="558" dy="62" unicode-bidi="embed">SearchbyNum</tspan>
+				<tspan x="558" dy="62" unicode-bidi="embed">(Integer n, Integer m)</tspan>
+			</text>
+		</g>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 434,4464 A 62 62, 0, 0 0, 434 4588 L 682,4588 A 62 62, 0, 0 0, 682 4464 Z"/>
+			<text x="558" y="4482" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="558" dy="62" unicode-bidi="embed">End</tspan>
+			</text>
+		</g>
+		<g>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,558 558,633"/>
+			<polygon fill="#404040" stroke="none" points="558,651 575,620 540,620"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,806 558,881"/>
+			<polygon fill="#404040" stroke="none" points="558,899 575,868 540,868"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,1054 558,1129"/>
+			<polygon fill="#404040" stroke="none" points="558,1147 575,1116 540,1116"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,1333 558,1408"/>
+			<polygon fill="#404040" stroke="none" points="558,1426 575,1395 540,1395"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,1550 558,1656"/>
+			<polygon fill="#404040" stroke="none" points="558,1674 575,1643 540,1643"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,1798 558,3826"/>
+			<polygon fill="#404040" stroke="none" points="558,3844 575,3813 540,3813"/>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 310,403 L 310,558 L 806,558 L 806,403 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="310,434 806,434"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="341,403 341,558"/>
+				<text x="573" y="452" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="573" dy="62" unicode-bidi="embed">Integer number</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 372,651 L 372,806 L 744,806 L 744,651 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="372,682 744,682"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="403,651 403,806"/>
+				<text x="573" y="700" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="573" dy="62" unicode-bidi="embed">Integer i</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 372,899 L 372,1054 L 744,1054 L 744,899 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="372,930 744,930"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="403,899 403,1054"/>
+				<text x="573" y="948" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="573" dy="62" unicode-bidi="embed">Integer j</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 217,1147 L 124,1333 L 899,1333 L 992,1147 Z"/>
+				<text x="558" y="1165" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="558" dy="62" unicode-bidi="embed">Output Input the number</tspan>
+					<tspan x="558" dy="62" unicode-bidi="embed"> you want to search:</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 403,1426 L 341,1550 L 713,1550 L 775,1426 Z"/>
+				<text x="558" y="1444" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="558" dy="62" unicode-bidi="embed">Input %ld</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="806,1736 1364,1736 1364,1842"/>
+				<polygon fill="#404040" stroke="none" points="1364,1860 1381,1829 1346,1829"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1364,3627 1364,3720 620,3720 620,1815"/>
+				<polygon fill="#404040" stroke="none" points="620,1798 602,1828 637,1828"/>
+				<g>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1705,2046 1922,2046 1922,2276"/>
+					<polygon fill="#404040" stroke="none" points="1922,2294 1939,2263 1904,2263"/>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1922,3472 1922,3596 1412,3596"/>
+					<polygon fill="#404040" stroke="none" points="1395,3596 1425,3613 1425,3578"/>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1023,2046 775,2046 775,3596 1315,3596"/>
+					<polygon fill="#404040" stroke="none" points="1333,3596 1302,3578 1302,3613"/>
+					<g>
+						<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1364,1860 L 992,2046 L 1364,2232 L 1736,2046 Z"/>
+						<text x="1364" y="2002" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1364" dy="62" unicode-bidi="embed">stu[i].num == number</tspan>
+						</text>
+					</g>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1922,2418 1922,2524"/>
+						<polygon fill="#404040" stroke="none" points="1922,2542 1939,2511 1904,2511"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1922,2666 1922,3051"/>
+						<polygon fill="#404040" stroke="none" points="1922,3069 1939,3038 1904,3038"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1922,3193 1922,3286"/>
+						<g>
+							<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1767,2294 L 1705,2418 L 2077,2418 L 2139,2294 Z"/>
+							<text x="1922" y="2312" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1922" dy="62" unicode-bidi="embed">Output \n</tspan>
+							</text>
+						</g>
+						<g>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2170,2604 2356,2604 2356,2710"/>
+							<polygon fill="#404040" stroke="none" points="2356,2728 2373,2697 2338,2697"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2356,2852 2356,2945 1984,2945 1984,2683"/>
+							<polygon fill="#404040" stroke="none" points="1984,2666 1966,2696 2001,2696"/>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 2170,2728 L 2108,2852 L 2542,2852 L 2604,2728 Z"/>
+								<text x="2356" y="2746" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2356" dy="62" unicode-bidi="embed">Output %d\t</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 1736,2542 L 1674,2604 L 1736,2666 L 2108,2666 L 2170,2604 L 2108,2542 Z"/>
+								<text x="1922" y="2560" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1922" dy="62" unicode-bidi="embed">j = 0 to m-1</tspan>
+								</text>
+							</g>
+							<text x="2263" y="2498" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="2263" dy="62" unicode-bidi="embed">Next</tspan>
+							</text>
+							<text x="1813" y="2684" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1813" dy="62" unicode-bidi="embed">Done</tspan>
+							</text>
+						</g>
+						<g>
+							<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1767,3069 L 1705,3193 L 2077,3193 L 2139,3069 Z"/>
+							<text x="1922" y="3087" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1922" dy="62" unicode-bidi="embed">Output \n</tspan>
+							</text>
+						</g>
+						<g>
+							<polygon fill="#FFA0A0" stroke="#A04C4C" stroke-width="4" points="1979,3402 1945,3436 1898,3436 1864,3402 1864,3355 1898,3321 1945,3321 1979,3355"/>
+							<text x="2123" y="3335" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="2123" dy="62" unicode-bidi="embed">Break</tspan>
+							</text>
+						</g>
+					</g>
+					<g>
+					</g>
+					<ellipse cx="1364" cy="3596" rx="31" ry="31" fill="#C04040" stroke="#602020" stroke-width="4"/>
+					<text x="1829" y="1940" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="1829" dy="62" unicode-bidi="embed">True</tspan>
+					</text>
+					<text x="883" y="1940" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="883" dy="62" unicode-bidi="embed">False</tspan>
+					</text>
+				</g>
+				<g>
+					<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 372,1674 L 310,1736 L 372,1798 L 744,1798 L 806,1736 L 744,1674 Z"/>
+					<text x="558" y="1692" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="558" dy="62" unicode-bidi="embed">i = 0 to n-1</tspan>
+					</text>
+				</g>
+				<text x="899" y="1630" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="899" dy="62" unicode-bidi="embed">Next</tspan>
+				</text>
+				<text x="449" y="1816" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="449" dy="62" unicode-bidi="embed">Done</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="713,3937 992,3937 992,4074"/>
+				<polygon fill="#404040" stroke="none" points="992,4092 1009,4061 974,4061"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="992,4216 992,4340 606,4340"/>
+				<polygon fill="#404040" stroke="none" points="589,4340 619,4357 619,4322"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="403,3937 155,3937 155,4340 509,4340"/>
+				<polygon fill="#404040" stroke="none" points="527,4340 496,4322 496,4357"/>
+				<g>
+					<path fill="#FFD0D0" stroke="#A07070" stroke-width="4" stroke-dasharray="none" d="M 558,3844 L 372,3937 L 558,4030 L 744,3937 Z"/>
+					<text x="558" y="3893" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="558" dy="62" unicode-bidi="embed">i == n</tspan>
+					</text>
+				</g>
+				<g>
+					<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 682,4092 L 620,4216 L 1302,4216 L 1364,4092 Z"/>
+					<text x="992" y="4110" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="992" dy="62" unicode-bidi="embed">Output \nNot found!\n</tspan>
+					</text>
+				</g>
+				<g>
+				</g>
+				<ellipse cx="558" cy="4340" rx="31" ry="31" fill="#FFD0D0" stroke="#A07070" stroke-width="4"/>
+				<text x="837" y="3831" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="837" dy="62" unicode-bidi="embed">True</tspan>
+				</text>
+				<text x="263" y="3831" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="263" dy="62" unicode-bidi="embed">False</tspan>
+				</text>
+			</g>
+		</g>
+	</g>
+</svg>
--- a/SortbyName.svg
+++ b/SortbyName.svg
@ -0,0 +1,189 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
+
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="3472" height="4464">
+	<rect x="0" y="0" width="3472" height="4464" fill="#FFFFFF"/>
+	<g>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,248 372,323"/>
+		<polygon fill="#404040" stroke="none" points="372,341 389,310 354,310"/>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,1240 372,4198"/>
+		<polygon fill="#404040" stroke="none" points="372,4216 389,4185 354,4185"/>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 217,124 A 62 62, 0, 0 0, 217 248 L 527,248 A 62 62, 0, 0 0, 527 124 Z"/>
+			<text x="372" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="372" dy="62" unicode-bidi="embed">SortbyName</tspan>
+			</text>
+		</g>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 248,4216 A 62 62, 0, 0 0, 248 4340 L 496,4340 A 62 62, 0, 0 0, 496 4216 Z"/>
+			<text x="372" y="4234" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="372" dy="62" unicode-bidi="embed">End</tspan>
+			</text>
+		</g>
+		<g>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,496 372,571"/>
+			<polygon fill="#404040" stroke="none" points="372,589 389,558 354,558"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,744 372,819"/>
+			<polygon fill="#404040" stroke="none" points="372,837 389,806 354,806"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,992 372,1098"/>
+			<polygon fill="#404040" stroke="none" points="372,1116 389,1085 354,1085"/>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 186,341 L 186,496 L 558,496 L 558,341 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="186,372 558,372"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="217,341 217,496"/>
+				<text x="387" y="390" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Integer i</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 186,589 L 186,744 L 558,744 L 558,589 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="186,620 558,620"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="217,589 217,744"/>
+				<text x="387" y="638" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Integer j</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 186,837 L 186,992 L 558,992 L 558,837 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="186,868 558,868"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="217,837 217,992"/>
+				<text x="387" y="886" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Integer t</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="620,1178 806,1178 806,1315"/>
+				<polygon fill="#404040" stroke="none" points="806,1333 823,1302 788,1302"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="806,1457 806,4092 434,4092 434,1257"/>
+				<polygon fill="#404040" stroke="none" points="434,1240 416,1270 451,1270"/>
+				<g>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1054,1395 1705,1395 1705,1501"/>
+					<polygon fill="#404040" stroke="none" points="1705,1519 1722,1488 1687,1488"/>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1705,3875 1705,3968 868,3968 868,1474"/>
+					<polygon fill="#404040" stroke="none" points="868,1457 850,1487 885,1487"/>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2139,1767 2356,1767 2356,2090"/>
+						<polygon fill="#404040" stroke="none" points="2356,2108 2373,2077 2338,2077"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2356,3720 2356,3844 1753,3844"/>
+						<polygon fill="#404040" stroke="none" points="1736,3844 1766,3861 1766,3826"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1271,1767 1023,1767 1023,3844 1656,3844"/>
+						<polygon fill="#404040" stroke="none" points="1674,3844 1643,3826 1643,3861"/>
+						<g>
+							<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1705,1519 L 1240,1767 L 1705,2015 L 2170,1767 Z"/>
+							<text x="1705" y="1692" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1705" dy="62" unicode-bidi="embed">strcmp(stu[j].name, stu[i].</tspan>
+								<tspan x="1705" dy="62" unicode-bidi="embed">name) &lt; 0</tspan>
+							</text>
+						</g>
+						<g>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2356,2232 2356,2679"/>
+							<polygon fill="#404040" stroke="none" points="2356,2697 2373,2666 2338,2666"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2356,2883 2356,2958"/>
+							<polygon fill="#404040" stroke="none" points="2356,2976 2373,2945 2338,2945"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2356,3162 2356,3237"/>
+							<polygon fill="#404040" stroke="none" points="2356,3255 2373,3224 2338,3224"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2356,3441 2356,3516"/>
+							<polygon fill="#404040" stroke="none" points="2356,3534 2373,3503 2338,3503"/>
+							<g>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2604,2170 2945,2170 2945,2276"/>
+								<polygon fill="#404040" stroke="none" points="2945,2294 2962,2263 2927,2263"/>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2945,2480 2945,2573 2418,2573 2418,2249"/>
+								<polygon fill="#404040" stroke="none" points="2418,2232 2400,2262 2435,2262"/>
+								<g>
+									<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 2542,2294 L 2542,2480 L 3348,2480 L 3348,2294 Z"/>
+									<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="2573,2294 2573,2480"/>
+									<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="3317,2294 3317,2480"/>
+									<text x="2945" y="2312" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2945" dy="62" unicode-bidi="embed">SwapFloat(&amp;stu[i].score[t], &amp;</tspan>
+										<tspan x="2945" dy="62" unicode-bidi="embed">stu[j].score[t])</tspan>
+									</text>
+								</g>
+								<g>
+									<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 2170,2108 L 2108,2170 L 2170,2232 L 2542,2232 L 2604,2170 L 2542,2108 Z"/>
+									<text x="2356" y="2126" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2356" dy="62" unicode-bidi="embed">t = 0 to m-1</tspan>
+									</text>
+								</g>
+								<text x="2697" y="2064" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2697" dy="62" unicode-bidi="embed">Next</tspan>
+								</text>
+								<text x="2247" y="2250" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2247" dy="62" unicode-bidi="embed">Done</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1922,2697 L 1922,2883 L 2790,2883 L 2790,2697 Z"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1953,2697 1953,2883"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="2759,2697 2759,2883"/>
+								<text x="2356" y="2715" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2356" dy="62" unicode-bidi="embed">SwapFloat(&amp;stu[i].sum, &amp;stu[j].</tspan>
+									<tspan x="2356" dy="62" unicode-bidi="embed">sum)</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1922,2976 L 1922,3162 L 2790,3162 L 2790,2976 Z"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1953,2976 1953,3162"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="2759,2976 2759,3162"/>
+								<text x="2356" y="2994" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2356" dy="62" unicode-bidi="embed">SwapFloat(&amp;stu[i].aver, &amp;stu[j].</tspan>
+									<tspan x="2356" dy="62" unicode-bidi="embed">aver)</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1922,3255 L 1922,3441 L 2790,3441 L 2790,3255 Z"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1953,3255 1953,3441"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="2759,3255 2759,3441"/>
+								<text x="2356" y="3273" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2356" dy="62" unicode-bidi="embed">SwapLong(&amp;stu[i].num, &amp;stu[j].</tspan>
+									<tspan x="2356" dy="62" unicode-bidi="embed">num)</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1953,3534 L 1953,3720 L 2759,3720 L 2759,3534 Z"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1984,3534 1984,3720"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="2728,3534 2728,3720"/>
+								<text x="2356" y="3552" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2356" dy="62" unicode-bidi="embed">SwapChar(stu[i].name, stu</tspan>
+									<tspan x="2356" dy="62" unicode-bidi="embed">[j].name)</tspan>
+								</text>
+							</g>
+						</g>
+						<g>
+						</g>
+						<ellipse cx="1705" cy="3844" rx="31" ry="31" fill="#C04040" stroke="#602020" stroke-width="4"/>
+						<text x="2263" y="1661" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="2263" dy="62" unicode-bidi="embed">True</tspan>
+						</text>
+						<text x="1131" y="1661" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1131" dy="62" unicode-bidi="embed">False</tspan>
+						</text>
+					</g>
+					<g>
+						<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 620,1333 L 558,1395 L 620,1457 L 992,1457 L 1054,1395 L 992,1333 Z"/>
+						<text x="806" y="1351" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="806" dy="62" unicode-bidi="embed">j = i+1 to n-1</tspan>
+						</text>
+					</g>
+					<text x="1147" y="1289" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="1147" dy="62" unicode-bidi="embed">Next</tspan>
+					</text>
+					<text x="697" y="1475" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="697" dy="62" unicode-bidi="embed">Done</tspan>
+					</text>
+				</g>
+				<g>
+					<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 186,1116 L 124,1178 L 186,1240 L 558,1240 L 620,1178 L 558,1116 Z"/>
+					<text x="372" y="1134" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="372" dy="62" unicode-bidi="embed">i = 0 to n-2</tspan>
+					</text>
+				</g>
+				<text x="713" y="1072" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="713" dy="62" unicode-bidi="embed">Next</tspan>
+				</text>
+				<text x="263" y="1258" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="263" dy="62" unicode-bidi="embed">Done</tspan>
+				</text>
+			</g>
+		</g>
+	</g>
+</svg>
--- a/SortbyScore.svg
+++ b/SortbyScore.svg
@ -0,0 +1,240 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
+
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2914" height="5549">
+	<rect x="0" y="0" width="2914" height="5549" fill="#FFFFFF"/>
+	<g>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,248 372,323"/>
+		<polygon fill="#404040" stroke="none" points="372,341 389,310 354,310"/>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,1488 372,5283"/>
+		<polygon fill="#404040" stroke="none" points="372,5301 389,5270 354,5270"/>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 217,124 A 62 62, 0, 0 0, 217 248 L 527,248 A 62 62, 0, 0 0, 527 124 Z"/>
+			<text x="372" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="372" dy="62" unicode-bidi="embed">SortbyScore</tspan>
+			</text>
+		</g>
+		<g>
+			<path fill="#E0E0E0" stroke="#505050" stroke-width="4" stroke-dasharray="none" d="M 186,5301 A 62 62, 0, 0 0, 186 5425 L 558,5425 A 62 62, 0, 0 0, 558 5301 Z"/>
+			<text x="372" y="5319" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="372" dy="62" unicode-bidi="embed">Return Integer </tspan>
+			</text>
+		</g>
+		<g>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,496 372,571"/>
+			<polygon fill="#404040" stroke="none" points="372,589 389,558 354,558"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,744 372,819"/>
+			<polygon fill="#404040" stroke="none" points="372,837 389,806 354,806"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,992 372,1067"/>
+			<polygon fill="#404040" stroke="none" points="372,1085 389,1054 354,1054"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,1240 372,1346"/>
+			<polygon fill="#404040" stroke="none" points="372,1364 389,1333 354,1333"/>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 186,341 L 186,496 L 558,496 L 558,341 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="186,372 558,372"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="217,341 217,496"/>
+				<text x="387" y="390" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Integer i</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 186,589 L 186,744 L 558,744 L 558,589 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="186,620 558,620"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="217,589 217,744"/>
+				<text x="387" y="638" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Integer j</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 186,837 L 186,992 L 558,992 L 558,837 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="186,868 558,868"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="217,837 217,992"/>
+				<text x="387" y="886" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Integer k</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 186,1085 L 186,1240 L 558,1240 L 558,1085 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="186,1116 558,1116"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="217,1085 217,1240"/>
+				<text x="387" y="1134" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Integer t</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="620,1426 992,1426 992,1532"/>
+				<polygon fill="#404040" stroke="none" points="992,1550 1009,1519 974,1519"/>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="992,5084 992,5177 434,5177 434,1505"/>
+				<polygon fill="#404040" stroke="none" points="434,1488 416,1518 451,1518"/>
+				<g>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="992,1674 992,1780"/>
+					<polygon fill="#404040" stroke="none" points="992,1798 1009,1767 974,1767"/>
+					<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="992,1922 992,3020"/>
+					<polygon fill="#404040" stroke="none" points="992,3038 1009,3007 974,3007"/>
+					<g>
+						<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 806,1550 L 806,1674 L 1178,1674 L 1178,1550 Z"/>
+						<text x="992" y="1568" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="992" dy="62" unicode-bidi="embed">k = i</tspan>
+						</text>
+					</g>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1240,1860 1922,1860 1922,1966"/>
+						<polygon fill="#404040" stroke="none" points="1922,1984 1939,1953 1904,1953"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1922,2821 1922,2914 1054,2914 1054,1939"/>
+						<polygon fill="#404040" stroke="none" points="1054,1922 1036,1952 1071,1952"/>
+						<g>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2387,2232 2604,2232 2604,2524"/>
+							<polygon fill="#404040" stroke="none" points="2604,2542 2621,2511 2586,2511"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2604,2666 2604,2790 1970,2790"/>
+							<polygon fill="#404040" stroke="none" points="1953,2790 1983,2807 1983,2772"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1457,2232 1209,2232 1209,2790 1873,2790"/>
+							<polygon fill="#404040" stroke="none" points="1891,2790 1860,2772 1860,2807"/>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1922,1984 L 1426,2232 L 1922,2480 L 2418,2232 Z"/>
+								<text x="1922" y="2157" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1922" dy="62" unicode-bidi="embed">if ((*compare)(stu[j].sum, stu</tspan>
+									<tspan x="1922" dy="62" unicode-bidi="embed">[k].sum))</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 2418,2542 L 2418,2666 L 2790,2666 L 2790,2542 Z"/>
+								<text x="2604" y="2560" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2604" dy="62" unicode-bidi="embed">k = j</tspan>
+								</text>
+							</g>
+							<g>
+							</g>
+							<ellipse cx="1922" cy="2790" rx="31" ry="31" fill="#C04040" stroke="#602020" stroke-width="4"/>
+							<text x="2511" y="2126" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="2511" dy="62" unicode-bidi="embed">True</tspan>
+							</text>
+							<text x="1317" y="2126" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1317" dy="62" unicode-bidi="embed">False</tspan>
+							</text>
+						</g>
+						<g>
+							<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 806,1798 L 744,1860 L 806,1922 L 1178,1922 L 1240,1860 L 1178,1798 Z"/>
+							<text x="992" y="1816" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="992" dy="62" unicode-bidi="embed">j = i+1 to n-1</tspan>
+							</text>
+						</g>
+						<text x="1333" y="1754" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1333" dy="62" unicode-bidi="embed">Next</tspan>
+						</text>
+						<text x="883" y="1940" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="883" dy="62" unicode-bidi="embed">Done</tspan>
+						</text>
+					</g>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1147,3131 1519,3131 1519,3299"/>
+						<polygon fill="#404040" stroke="none" points="1519,3317 1536,3286 1501,3286"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,4929 1519,5053 1040,5053"/>
+						<polygon fill="#404040" stroke="none" points="1023,5053 1053,5070 1053,5035"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="837,3131 589,3131 589,5053 943,5053"/>
+						<polygon fill="#404040" stroke="none" points="961,5053 930,5035 930,5070"/>
+						<g>
+							<path fill="#FFD0D0" stroke="#A07070" stroke-width="4" stroke-dasharray="none" d="M 992,3038 L 806,3131 L 992,3224 L 1178,3131 Z"/>
+							<text x="992" y="3087" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="992" dy="62" unicode-bidi="embed">k!=i</tspan>
+							</text>
+						</g>
+						<g>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,3441 1519,3888"/>
+							<polygon fill="#404040" stroke="none" points="1519,3906 1536,3875 1501,3875"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,4092 1519,4167"/>
+							<polygon fill="#404040" stroke="none" points="1519,4185 1536,4154 1501,4154"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,4371 1519,4446"/>
+							<polygon fill="#404040" stroke="none" points="1519,4464 1536,4433 1501,4433"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,4650 1519,4725"/>
+							<polygon fill="#404040" stroke="none" points="1519,4743 1536,4712 1501,4712"/>
+							<g>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1767,3379 2139,3379 2139,3485"/>
+								<polygon fill="#404040" stroke="none" points="2139,3503 2156,3472 2121,3472"/>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2139,3689 2139,3782 1581,3782 1581,3458"/>
+								<polygon fill="#404040" stroke="none" points="1581,3441 1563,3471 1598,3471"/>
+								<g>
+									<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1705,3503 L 1705,3689 L 2573,3689 L 2573,3503 Z"/>
+									<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1736,3503 1736,3689"/>
+									<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="2542,3503 2542,3689"/>
+									<text x="2139" y="3521" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2139" dy="62" unicode-bidi="embed">SwapFloat(&amp;stu[k].score[t], &amp;</tspan>
+										<tspan x="2139" dy="62" unicode-bidi="embed">stu[i].score[t])</tspan>
+									</text>
+								</g>
+								<g>
+									<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 1333,3317 L 1271,3379 L 1333,3441 L 1705,3441 L 1767,3379 L 1705,3317 Z"/>
+									<text x="1519" y="3335" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="1519" dy="62" unicode-bidi="embed">t = 0 to m-1</tspan>
+									</text>
+								</g>
+								<text x="1860" y="3273" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1860" dy="62" unicode-bidi="embed">Next</tspan>
+								</text>
+								<text x="1410" y="3459" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1410" dy="62" unicode-bidi="embed">Done</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1054,3906 L 1054,4092 L 1984,4092 L 1984,3906 Z"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1085,3906 1085,4092"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1953,3906 1953,4092"/>
+								<text x="1519" y="3924" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1519" dy="62" unicode-bidi="embed">SwapFloat(&amp;stu[k].sum, &amp;stu[i].</tspan>
+									<tspan x="1519" dy="62" unicode-bidi="embed">sum)</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1054,4185 L 1054,4371 L 1984,4371 L 1984,4185 Z"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1085,4185 1085,4371"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1953,4185 1953,4371"/>
+								<text x="1519" y="4203" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1519" dy="62" unicode-bidi="embed">SwapFloat(&amp;stu[k].aver, &amp;stu[i].</tspan>
+									<tspan x="1519" dy="62" unicode-bidi="embed">aver)</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1054,4464 L 1054,4650 L 1984,4650 L 1984,4464 Z"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1085,4464 1085,4650"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1953,4464 1953,4650"/>
+								<text x="1519" y="4482" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1519" dy="62" unicode-bidi="embed">SwapLong(&amp;stu[k].num, &amp;stu[i].</tspan>
+									<tspan x="1519" dy="62" unicode-bidi="embed">num)</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1116,4743 L 1116,4929 L 1922,4929 L 1922,4743 Z"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1147,4743 1147,4929"/>
+								<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="1891,4743 1891,4929"/>
+								<text x="1519" y="4761" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1519" dy="62" unicode-bidi="embed">SwapChar(stu[k].name, stu</tspan>
+									<tspan x="1519" dy="62" unicode-bidi="embed">[i].name)</tspan>
+								</text>
+							</g>
+						</g>
+						<g>
+						</g>
+						<ellipse cx="992" cy="5053" rx="31" ry="31" fill="#FFD0D0" stroke="#A07070" stroke-width="4"/>
+						<text x="1271" y="3025" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1271" dy="62" unicode-bidi="embed">True</tspan>
+						</text>
+						<text x="697" y="3025" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="697" dy="62" unicode-bidi="embed">False</tspan>
+						</text>
+					</g>
+				</g>
+				<g>
+					<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 186,1364 L 124,1426 L 186,1488 L 558,1488 L 620,1426 L 558,1364 Z"/>
+					<text x="372" y="1382" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="372" dy="62" unicode-bidi="embed">i = 0 to n-2</tspan>
+					</text>
+				</g>
+				<text x="713" y="1320" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="713" dy="62" unicode-bidi="embed">Next</tspan>
+				</text>
+				<text x="263" y="1506" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="263" dy="62" unicode-bidi="embed">Done</tspan>
+				</text>
+			</g>
+		</g>
+	</g>
+</svg>
--- a/StatisticAnalysis.svg
+++ b/StatisticAnalysis.svg
@ -0,0 +1,385 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
+
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="4309" height="8711">
+	<rect x="0" y="0" width="4309" height="8711" fill="#FFFFFF"/>
+	<g>
+		<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="496,310 496,385"/>
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+		<polygon fill="#404040" stroke="none" points="496,8463 513,8432 478,8432"/>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 217,124 A 93 93, 0, 0 0, 217 310 L 775,310 A 93 93, 0, 0 0, 775 124 Z"/>
+			<text x="496" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="496" dy="62" unicode-bidi="embed">StatisticAnalysis</tspan>
+				<tspan x="496" dy="62" unicode-bidi="embed">(Integer n, Integer m)</tspan>
+			</text>
+		</g>
+		<g>
+			<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 372,8463 A 62 62, 0, 0 0, 372 8587 L 620,8587 A 62 62, 0, 0 0, 620 8463 Z"/>
+			<text x="496" y="8481" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+				<tspan x="496" dy="62" unicode-bidi="embed">End</tspan>
+			</text>
+		</g>
+		<g>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="496,558 496,633"/>
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+			<polygon fill="#404040" stroke="none" points="496,899 513,868 478,868"/>
+			<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="496,1054 496,1160"/>
+			<polygon fill="#404040" stroke="none" points="496,1178 513,1147 478,1147"/>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 310,403 L 310,558 L 682,558 L 682,403 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="310,434 682,434"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="341,403 341,558"/>
+				<text x="511" y="452" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="511" dy="62" unicode-bidi="embed">Integer i</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 310,651 L 310,806 L 682,806 L 682,651 Z"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="310,682 682,682"/>
+				<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="341,651 341,806"/>
+				<text x="511" y="700" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="511" dy="62" unicode-bidi="embed">Integer j</tspan>
+				</text>
+			</g>
+			<g>
+				<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 310,899 L 310,1054 L 682,1054 L 682,899 Z"/>
+				<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="310,930 682,930"/>
+				<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="341,899 341,1054"/>
+				<text x="511" y="948" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="511" dy="62" unicode-bidi="embed">Integer t[6]</tspan>
+				</text>
+			</g>
+			<g>
+				<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="744,1240 1085,1240 1085,1346"/>
+				<polygon fill="#404040" stroke="none" points="1085,1364 1102,1333 1067,1333"/>
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+				<polygon fill="#404040" stroke="none" points="558,1302 540,1332 575,1332"/>
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+						<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 744,1364 L 682,1488 L 1426,1488 L 1488,1364 Z"/>
+						<text x="1085" y="1382" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1085" dy="62" unicode-bidi="embed">Output For course %d:\n</tspan>
+						</text>
+					</g>
+					<g>
+						<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 744,1581 L 744,1705 L 1426,1705 L 1426,1581 Z"/>
+						<polyline fill="none" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" points="775,1581 775,1705"/>
+						<polyline fill="none" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" points="1395,1581 1395,1705"/>
+						<text x="1085" y="1599" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1085" dy="62" unicode-bidi="embed">memset(t, 0, sizeof(t))</tspan>
+						</text>
+					</g>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1333,1891 2015,1891 2015,1997"/>
+						<polygon fill="#404040" stroke="none" points="2015,2015 2032,1984 1997,1984"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2015,6696 2015,6789 1147,6789 1147,1970"/>
+						<polygon fill="#404040" stroke="none" points="1147,1953 1129,1983 1164,1983"/>
+						<g>
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+							<polygon fill="#404040" stroke="none" points="2015,2945 2032,2914 1997,2914"/>
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+								<polygon fill="#404040" stroke="none" points="2697,2573 2714,2542 2679,2542"/>
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+								<polygon fill="#404040" stroke="none" points="2046,2821 2076,2838 2076,2803"/>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1550,2263 1302,2263 1302,2821 1966,2821"/>
+								<polygon fill="#404040" stroke="none" points="1984,2821 1953,2803 1953,2838"/>
+								<g>
+									<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 2015,2015 L 1519,2263 L 2015,2511 L 2511,2263 Z"/>
+									<text x="2015" y="2188" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2015" dy="62" unicode-bidi="embed">stu[i].score[j] &gt;= 0 &amp;&amp; stu[i].</tspan>
+										<tspan x="2015" dy="62" unicode-bidi="embed">score[j] &lt; 60</tspan>
+									</text>
+								</g>
+								<g>
+									<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 2511,2573 L 2511,2697 L 2883,2697 L 2883,2573 Z"/>
+									<text x="2697" y="2591" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2697" dy="62" unicode-bidi="embed">t[0] = t[0]+1</tspan>
+									</text>
+								</g>
+								<g>
+								</g>
+								<ellipse cx="2015" cy="2821" rx="31" ry="31" fill="#C04040" stroke="#602020" stroke-width="4"/>
+								<text x="2604" y="2157" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2604" dy="62" unicode-bidi="embed">True</tspan>
+								</text>
+								<text x="1410" y="2157" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1410" dy="62" unicode-bidi="embed">False</tspan>
+								</text>
+							</g>
+							<g>
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+								<polygon fill="#404040" stroke="none" points="2046,3565 2076,3582 2076,3547"/>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1736,3100 1488,3100 1488,3565 1966,3565"/>
+								<polygon fill="#404040" stroke="none" points="1984,3565 1953,3547 1953,3582"/>
+								<g>
+									<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 2015,2945 L 1705,3100 L 2015,3255 L 2325,3100 Z"/>
+									<text x="2015" y="3056" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2015" dy="62" unicode-bidi="embed">stu[i].score[j] &lt; 70</tspan>
+									</text>
+								</g>
+								<g>
+									<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 2325,3317 L 2325,3441 L 2697,3441 L 2697,3317 Z"/>
+									<text x="2511" y="3335" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2511" dy="62" unicode-bidi="embed">t[1] = t[1]+1</tspan>
+									</text>
+								</g>
+								<g>
+								</g>
+								<ellipse cx="2015" cy="3565" rx="31" ry="31" fill="#C04040" stroke="#602020" stroke-width="4"/>
+								<text x="2418" y="2994" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2418" dy="62" unicode-bidi="embed">True</tspan>
+								</text>
+								<text x="1596" y="2994" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1596" dy="62" unicode-bidi="embed">False</tspan>
+								</text>
+							</g>
+							<g>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2294,3844 2511,3844 2511,4043"/>
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+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2511,4185 2511,4309 2063,4309"/>
+								<polygon fill="#404040" stroke="none" points="2046,4309 2076,4326 2076,4291"/>
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+								<polygon fill="#404040" stroke="none" points="1984,4309 1953,4291 1953,4326"/>
+								<g>
+									<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 2015,3689 L 1705,3844 L 2015,3999 L 2325,3844 Z"/>
+									<text x="2015" y="3800" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2015" dy="62" unicode-bidi="embed">stu[i].score[j] &lt; 80</tspan>
+									</text>
+								</g>
+								<g>
+									<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 2325,4061 L 2325,4185 L 2697,4185 L 2697,4061 Z"/>
+									<text x="2511" y="4079" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2511" dy="62" unicode-bidi="embed">t[2] = t[2]+1</tspan>
+									</text>
+								</g>
+								<g>
+								</g>
+								<ellipse cx="2015" cy="4309" rx="31" ry="31" fill="#C04040" stroke="#602020" stroke-width="4"/>
+								<text x="2418" y="3738" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2418" dy="62" unicode-bidi="embed">True</tspan>
+								</text>
+								<text x="1596" y="3738" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1596" dy="62" unicode-bidi="embed">False</tspan>
+								</text>
+							</g>
+							<g>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2294,4588 2511,4588 2511,4787"/>
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+								<polygon fill="#404040" stroke="none" points="2046,5053 2076,5070 2076,5035"/>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1736,4588 1488,4588 1488,5053 1966,5053"/>
+								<polygon fill="#404040" stroke="none" points="1984,5053 1953,5035 1953,5070"/>
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+									<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 2015,4433 L 1705,4588 L 2015,4743 L 2325,4588 Z"/>
+									<text x="2015" y="4544" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2015" dy="62" unicode-bidi="embed">stu[i].score[j] &lt; 90</tspan>
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+								</g>
+								<g>
+									<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 2325,4805 L 2325,4929 L 2697,4929 L 2697,4805 Z"/>
+									<text x="2511" y="4823" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2511" dy="62" unicode-bidi="embed">t[3] = t[3]+1</tspan>
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+								</g>
+								<g>
+								</g>
+								<ellipse cx="2015" cy="5053" rx="31" ry="31" fill="#C04040" stroke="#602020" stroke-width="4"/>
+								<text x="2418" y="4482" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2418" dy="62" unicode-bidi="embed">True</tspan>
+								</text>
+								<text x="1596" y="4482" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1596" dy="62" unicode-bidi="embed">False</tspan>
+								</text>
+							</g>
+							<g>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2325,5363 2542,5363 2542,5593"/>
+								<polygon fill="#404040" stroke="none" points="2542,5611 2559,5580 2524,5580"/>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2542,5735 2542,5859 2063,5859"/>
+								<polygon fill="#404040" stroke="none" points="2046,5859 2076,5876 2076,5841"/>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1705,5363 1457,5363 1457,5859 1966,5859"/>
+								<polygon fill="#404040" stroke="none" points="1984,5859 1953,5841 1953,5876"/>
+								<g>
+									<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 2015,5177 L 1674,5363 L 2015,5549 L 2356,5363 Z"/>
+									<text x="2015" y="5319" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2015" dy="62" unicode-bidi="embed">stu[i].score[j] &lt; 100</tspan>
+									</text>
+								</g>
+								<g>
+									<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 2356,5611 L 2356,5735 L 2728,5735 L 2728,5611 Z"/>
+									<text x="2542" y="5629" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2542" dy="62" unicode-bidi="embed">t[4] = t[4]+1</tspan>
+									</text>
+								</g>
+								<g>
+								</g>
+								<ellipse cx="2015" cy="5859" rx="31" ry="31" fill="#C04040" stroke="#602020" stroke-width="4"/>
+								<text x="2449" y="5257" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2449" dy="62" unicode-bidi="embed">True</tspan>
+								</text>
+								<text x="1565" y="5257" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1565" dy="62" unicode-bidi="embed">False</tspan>
+								</text>
+							</g>
+							<g>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2325,6169 2542,6169 2542,6399"/>
+								<polygon fill="#404040" stroke="none" points="2542,6417 2559,6386 2524,6386"/>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2542,6541 2542,6665 2063,6665"/>
+								<polygon fill="#404040" stroke="none" points="2046,6665 2076,6682 2076,6647"/>
+								<polyline fill="none" stroke="#FF8040" stroke-width="8" stroke-dasharray="none" points="1705,6169 1457,6169 1457,6665 1966,6665"/>
+								<polygon fill="#FF8040" stroke="none" points="1984,6665 1953,6647 1953,6682"/>
+								<g>
+									<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 2015,5983 L 1674,6169 L 2015,6355 L 2356,6169 Z"/>
+									<text x="2015" y="6125" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2015" dy="62" unicode-bidi="embed">stu[i].score[j] == 100</tspan>
+									</text>
+								</g>
+								<g>
+									<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 2356,6417 L 2356,6541 L 2728,6541 L 2728,6417 Z"/>
+									<text x="2542" y="6435" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2542" dy="62" unicode-bidi="embed">t[5] = t[5]+1</tspan>
+									</text>
+								</g>
+								<g>
+								</g>
+								<ellipse cx="2015" cy="6665" rx="31" ry="31" fill="#C04040" stroke="#602020" stroke-width="4"/>
+								<text x="2449" y="6063" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2449" dy="62" unicode-bidi="embed">True</tspan>
+								</text>
+								<text x="1565" y="6063" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1565" dy="62" unicode-bidi="embed">False</tspan>
+								</text>
+							</g>
+						</g>
+						<g>
+							<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 899,1829 L 837,1891 L 899,1953 L 1271,1953 L 1333,1891 L 1271,1829 Z"/>
+							<text x="1085" y="1847" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1085" dy="62" unicode-bidi="embed">i = 0 to n-1</tspan>
+							</text>
+						</g>
+						<text x="1426" y="1785" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1426" dy="62" unicode-bidi="embed">Next</tspan>
+						</text>
+						<text x="976" y="1971" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="976" dy="62" unicode-bidi="embed">Done</tspan>
+						</text>
+					</g>
+					<g>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1302,7006 3255,7006 3255,7112"/>
+						<polygon fill="#404040" stroke="none" points="3255,7130 3272,7099 3237,7099"/>
+						<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="3255,8122 3255,8215 1147,8215 1147,7085"/>
+						<polygon fill="#404040" stroke="none" points="1147,7068 1129,7098 1164,7098"/>
+						<g>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="3410,7223 3751,7223 3751,7360"/>
+							<polygon fill="#404040" stroke="none" points="3751,7378 3768,7347 3733,7347"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="3751,7502 3751,8091 3303,8091"/>
+							<polygon fill="#404040" stroke="none" points="3286,8091 3316,8108 3316,8073"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="3100,7223 2263,7223 2263,7360"/>
+							<polygon fill="#404040" stroke="none" points="2263,7378 2280,7347 2245,7347"/>
+							<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2263,7967 2263,8091 3206,8091"/>
+							<polygon fill="#404040" stroke="none" points="3224,8091 3193,8073 3193,8108"/>
+							<g>
+								<path fill="#FFD0D0" stroke="#A07070" stroke-width="4" stroke-dasharray="none" d="M 3255,7130 L 3069,7223 L 3255,7316 L 3441,7223 Z"/>
+								<text x="3255" y="7179" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="3255" dy="62" unicode-bidi="embed">i == 0</tspan>
+								</text>
+							</g>
+							<g>
+								<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 3379,7378 L 3317,7502 L 4123,7502 L 4185,7378 Z"/>
+								<text x="3751" y="7396" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="3751" dy="62" unicode-bidi="embed">Output &lt;60\t%d\t%.2f%%\n</tspan>
+								</text>
+							</g>
+							<g>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2418,7471 2759,7471 2759,7608"/>
+								<polygon fill="#404040" stroke="none" points="2759,7626 2776,7595 2741,7595"/>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2759,7750 2759,7936 2311,7936"/>
+								<polygon fill="#404040" stroke="none" points="2294,7936 2324,7953 2324,7918"/>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2108,7471 1767,7471 1767,7608"/>
+								<polygon fill="#404040" stroke="none" points="1767,7626 1784,7595 1749,7595"/>
+								<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1767,7812 1767,7936 2214,7936"/>
+								<polygon fill="#404040" stroke="none" points="2232,7936 2201,7918 2201,7953"/>
+								<g>
+									<path fill="#FFD0D0" stroke="#A07070" stroke-width="4" stroke-dasharray="none" d="M 2263,7378 L 2077,7471 L 2263,7564 L 2449,7471 Z"/>
+									<text x="2263" y="7427" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2263" dy="62" unicode-bidi="embed">i==5</tspan>
+									</text>
+								</g>
+								<g>
+									<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 2387,7626 L 2325,7750 L 3131,7750 L 3193,7626 Z"/>
+									<text x="2759" y="7644" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="2759" dy="62" unicode-bidi="embed">Output %d\t%d\t%.2f%%\n</tspan>
+									</text>
+								</g>
+								<g>
+									<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1426,7626 L 1333,7812 L 2108,7812 L 2201,7626 Z"/>
+									<text x="1767" y="7644" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+										<tspan x="1767" dy="62" unicode-bidi="embed">Output %d-%d\t%d\t%.2f</tspan>
+										<tspan x="1767" dy="62" unicode-bidi="embed">%%\n</tspan>
+									</text>
+								</g>
+								<ellipse cx="2263" cy="7936" rx="31" ry="31" fill="#FFD0D0" stroke="#A07070" stroke-width="4"/>
+								<text x="2542" y="7365" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="2542" dy="62" unicode-bidi="embed">True</tspan>
+								</text>
+								<text x="1968" y="7365" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+									<tspan x="1968" dy="62" unicode-bidi="embed">False</tspan>
+								</text>
+							</g>
+							<ellipse cx="3255" cy="8091" rx="31" ry="31" fill="#FFD0D0" stroke="#A07070" stroke-width="4"/>
+							<text x="3534" y="7117" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="3534" dy="62" unicode-bidi="embed">True</tspan>
+							</text>
+							<text x="2960" y="7117" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="2960" dy="62" unicode-bidi="embed">False</tspan>
+							</text>
+						</g>
+						<g>
+							<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 930,6944 L 868,7006 L 930,7068 L 1240,7068 L 1302,7006 L 1240,6944 Z"/>
+							<text x="1085" y="6962" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+								<tspan x="1085" dy="62" unicode-bidi="embed">i = 0 to 5</tspan>
+							</text>
+						</g>
+						<text x="1395" y="6900" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="1395" dy="62" unicode-bidi="embed">Next</tspan>
+						</text>
+						<text x="976" y="7086" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+							<tspan x="976" dy="62" unicode-bidi="embed">Done</tspan>
+						</text>
+					</g>
+				</g>
+				<g>
+					<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 310,1178 L 248,1240 L 310,1302 L 682,1302 L 744,1240 L 682,1178 Z"/>
+					<text x="496" y="1196" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+						<tspan x="496" dy="62" unicode-bidi="embed">j = 0 to m-1</tspan>
+					</text>
+				</g>
+				<text x="837" y="1134" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="837" dy="62" unicode-bidi="embed">Next</tspan>
+				</text>
+				<text x="387" y="1320" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
+					<tspan x="387" dy="62" unicode-bidi="embed">Done</tspan>
+				</text>
+			</g>
+		</g>
+	</g>
+</svg>
--- a/main.drawio.svg
+++ b/main.drawio.svg
@ -0,0 +1,367 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="699px" height="1361px" viewBox="-0.5 -0.5 699 1361" content="&lt;mxfile&gt;&lt;diagram id=&quot;k3F4nh4vAVUfQn0zDPXk&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 310 620 L 230 620 Q 220 620 210 620 L 126.37 620" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 121.12 620 L 128.12 616.5 L 126.37 620 L 128.12 623.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 430 620 L 513.63 620" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 518.88 620 L 511.88 623.5 L 513.63 620 L 511.88 616.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="310" y="590" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 620px; margin-left: 311px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font style="font-size: 24px;">
+                                    main
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="370" y="624" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    main
+                </text>
+            </switch>
+        </g>
+        <rect x="0" y="590" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 620px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font style="font-size: 24px;">
+                                    choice
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="624" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    choice
+                </text>
+            </switch>
+        </g>
+        <rect x="0" y="730" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 760px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                <font style="font-size: 24px;">
+                                    confirm
+                                </font>
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="764" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    confirm
+                </text>
+            </switch>
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+                    </div>
+                </foreignObject>
+                <text x="605" y="1334" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    ReadfromFile
+                </text>
+            </switch>
+        </g>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>
--- a/main函数详细实现.drawio.svg
+++ b/main函数详细实现.drawio.svg
--- a/代码实现.c
+++ b/代码实现.c
@ -0,0 +1,414 @@
+#include<stdio.h> 
+#include<stdlib.h>
+#include<string.h>
+
+// define定义的全局变量
+
+#define MAX_LEN 10      //字符串最大长度
+#define STU_NUM 30      //最多的考试人数
+#define COURSE_NUM 6    //最多的考试科目
+
+// 结构体的定义
+
+typedef struct student {
+    long num;                  //每个学生的学号
+    char name[MAX_LEN];        //每个学生的姓名
+    float score[COURSE_NUM];   //每个学生COURSE_NUM门功课的成绩
+    float sum;                 //每个学生的总成绩
+    float aver;                //每个学生的平均成绩
+}STU;
+
+// 函数声明
+
+int Menu(void);               //菜单显示、用户输入函数
+void ReadScore(STU stu[], int n, int m);      //学生成绩录入函数
+void AverSumofEveryStudent(STU stu[], int n, int m);     //求每个学生总分和平均分的函数
+void AverSumofEveryCourse(STU stu[], int n, int m);      //求每门课程总分和平均分的函数
+void SortbyScore(STU stu[], int n, int m, int (*compare)(float a, float b));    //选择法将数组 sum 的元素排序的函数
+int Ascending(float a, float b);     //使数据按升序排序的函数
+int Descending(float a, float b);    //使数据按降序排序的函数
+void SwapFloat(float* x, float* y);  //用于交换两个单精度浮点数的函数
+void SwapLong(long* x, long* y);     //用于交换两个长整型数据的函数
+void SwapChar(char x[], char y[]);   //用于交换两个字符串的函数
+void AsSortbyNum(STU stu[], int n, int m);      //选择法将数组 num 的元素值从低到高排序的函数
+void SortbyName(STU stu[], int n, int m);       //交换法实现字符串按字典顺序排序的函数
+void SearchbyNum(STU stu[], int n, int m);      //按学号查找学生成绩并显示查找结果的函数
+void SearchbyName(STU stu[], int n, int m);     //按姓名的字典顺序排出成绩表的函数
+void StatisticAnalysis(STU stu[], int n, int m);      //统计各分数段的学生人数及所占的百分比的函数
+void PrintScore(STU stu[], int n, int m);             //打印学生成绩的函数
+void WritetoFile(STU record[], int n, int m);         //输出学生信息到文件中的函数
+void ReadfromFile(STU record[], int* n, int* m);      //从文件中读取学生信息的函数
+
+// 主函数
+int main(void)
+{
+    char ch;
+    int n = 0, m = 0;
+    STU stu[STU_NUM];
+    printf("Input student number(n<%d):", STU_NUM);
+    scanf("%d", &n);
+    printf("Input course number(m<=%d):", COURSE_NUM);
+    scanf("%d", &m);
+    while (1)
+    {
+        ch = Menu();        //显示菜单，并读取用户输入
+        switch (ch)
+        {
+        case 1:ReadScore(stu, n, m);
+            break;
+        case 2:AverSumofEveryCourse(stu, n, m);
+            break;
+        case 3:AverSumofEveryStudent(stu, n, m);
+            break;
+        case 4:SortbyScore(stu, n, m, Descending);
+            printf("\nSort in descending order by score:\n");
+            PrintScore(stu, n, m);
+            break;
+        case 5:SortbyScore(stu, n, m, Ascending);
+            printf("\nSort in ascending order by number:\n");
+            PrintScore(stu, n, m);
+            break;
+        case 6:AsSortbyNum(stu, n, m);
+            printf("\nSort in ascending order by number:\n");
+            PrintScore(stu, n, m);
+            break;
+        case 7:SortbyName(stu, n, m);
+            printf("\nSort in dictionary order by name:\n");
+            PrintScore(stu, n, m);
+            break;
+        case 8:SearchbyNum(stu, n, m);
+            break;
+        case 9:SearchbyName(stu, n, m);
+            break;
+        case 10:StatisticAnalysis(stu, n, m);
+            break;
+        case 11:PrintScore(stu, n, m);
+            break;
+        case 12:WritetoFile(stu, n, m);
+            break;
+        case 13:ReadfromFile(stu, &n, &m);
+            break;
+        case 0: printf("Are you sure you want to exit?(Y/N):");
+            printf("End of program!");
+                exit(0);
+        default:printf("Input error!");
+        }
+    }
+    return 0;
+}
+
+// 函数功能：显示菜单并获得用户键盘输入的选项
+int Menu(void)
+{
+    int itemSelected;
+    printf("Management for Students' scores\n");
+    printf("1 Input record\n");
+    printf("2 Calculate total and average score of every course\n");
+    printf("3 Calculate total and average score of every student\n");
+    printf("4 Sort in descending order by score\n");
+    printf("5 Sort in ascending order by score\n");
+    printf("6 Sort in ascending order by number\n");
+    printf("7 Sort in dictionary order by name\n");
+    printf("8 Search by number\n");
+    printf("9 Search by name\n");
+    printf("10 Statistic analysis\n");
+    printf("11 List record\n");
+    printf("12 Write to a file\n");
+    printf("13 Read from a file\n");
+    printf("0 Exit\n");
+    printf("Please Input your choice:");
+    scanf("%d", &itemSelected);    //读入用户输入
+    return itemSelected;
+}
+
+// 函数功能：输入 n 个学生的 m 门课成绩
+void ReadScore(STU stu[], int n, int m)
+{
+    int i, j;
+    printf("Input student's ID ,name and score:\n");
+    for (i = 0; i < n; i++)     //输入n个同学
+    {
+        scanf("%ld%s", &stu[i].num, stu[i].name);
+        for (j = 0; j < m; j++)       //输入m门成绩
+            scanf("%f", &stu[i].score[j]);
+    }
+}
+
+//函数功能：计算每个学生各门课程的总分和平均分
+void AverSumofEveryStudent(STU stu[], int n, int m)
+{
+    int i, j;
+    for (i = 0; i < n; i++)
+    {
+        stu[i].sum = 0;   //初始化每个学生总分为0
+        for (j = 0; j < m; j++)
+        {
+            stu[i].sum = stu[i].sum + stu[i].score[j];    //累加分数
+        }
+        stu[i].aver = m > 0 ? stu[i].sum / m : -1;
+        printf("student %d: sum = %.0f,aver = %.0f\n", i + 1, stu[i].sum, stu[i].aver);
+    }
+}
+
+//函数功能：计算每门课程的总分和平均分
+void AverSumofEveryCourse(STU stu[], int n, int m)
+{
+    int i, j;
+    float sum[COURSE_NUM], aver[COURSE_NUM];
+    for (j = 0; j < m; j++)
+    {
+        sum[j] = 0;
+        for (i = 0; i < n; i++)
+        {
+            sum[j] += stu[i].score[j];   //计算n个同学每门课程的总分
+
+        }
+        aver[j] = sum[j] / i;
+        printf("course %d: sum = %.0f,aver = %.0f\n", j + 1, sum[j], aver[j]);
+    }
+}
+
+//函数功能：按选择法将数组 sum 的元素值排序
+void SortbyScore(STU stu[], int n, int m, int(*compare)(float a, float b))
+{
+    int  i, j, k, t;
+    for (i = 0; i < n - 1; i++)
+    {
+        k = i;
+        for (j = i + 1; j < n; j++)
+        {
+            if ((*compare)(stu[j].sum, stu[k].sum)) k = j;
+        }
+        if (k != i)
+        {
+            for (t = 0; t < m; t++)        //交换m门课程的成绩
+            {
+                SwapFloat(&stu[k].score[t], &stu[i].score[t]);
+            }
+            SwapFloat(&stu[k].sum, &stu[i].sum);    //交换总分 
+            SwapFloat(&stu[k].aver, &stu[i].aver);  //交换平均分
+            SwapLong(&stu[k].num, &stu[i].num);     //交换学号 
+            SwapChar(stu[k].name, stu[i].name);     //交换姓名
+        }
+    }
+}
+
+//使数据按升序排序
+int Ascending(float a, float b)
+{
+    return a < b;    //这样比较决定了按升序排序，如果a<b，则交换
+}
+
+//使数据按降序排序
+int Descending(float a, float b)
+{
+    return a > b;    // 这样比较决定了按降序排序，如果 a>b，则交换
+}
+
+//交换两个单精度浮点型数据
+void SwapFloat(float* x, float* y)
+{
+    float  temp;
+    temp = *x;
+    *x = *y;
+    *y = temp;
+}
+
+//交换两个长整型数据
+void SwapLong(long* x, long* y)
+{
+    long temp;
+    temp = *x;
+    *x = *y;
+    *y = temp;
+}
+
+//交换两个字符串
+void SwapChar(char x[], char y[])
+{
+    char temp[MAX_LEN];
+    strcpy(temp, x);
+    strcpy(x, y);
+    strcpy(y, temp);
+}
+
+//函数功能：按选择法将数组 num 的元素从低到高排序
+void AsSortbyNum(STU stu[], int n, int m)
+{
+    int  i, j, k, t;
+    for (i = 0; i < n - 1; i++)
+    {
+        k = i;
+        for (j = i + 1; j < n; j++)
+        {
+            if (stu[j].num < stu[k].num) k = j;
+        }
+        if (k != i)
+        {
+            for (t = 0; t < m; t++)        //交换m门课程的成绩
+            {
+                SwapFloat(&stu[k].score[t], &stu[i].score[t]);
+            }
+            SwapFloat(&stu[k].sum, &stu[i].sum);    //交换总分 
+            SwapFloat(&stu[k].aver, &stu[i].aver);  //交换平均分
+            SwapLong(&stu[k].num, &stu[i].num);     //交换学号 
+            SwapChar(stu[k].name, stu[i].name);     //交换姓名
+        }
+    }
+}
+
+//函数功能：交换法实现字符串按字典顺序排序
+void SortbyName(STU stu[], int n, int m)
+{
+    int  i, j, t;
+    for (i = 0; i < n - 1; i++)
+    {
+        for (j = i + 1; j < n; j++)
+        {
+            if (strcmp(stu[j].name, stu[i].name) < 0)
+            {
+                for (t = 0; t < m; t++)   //交换m门课程的成绩
+                {
+                    SwapFloat(&stu[i].score[t], &stu[j].score[t]);
+                }
+                SwapFloat(&stu[i].sum, &stu[j].sum);    //交换总分 
+                SwapFloat(&stu[i].aver, &stu[j].aver);   //交换平均分
+                SwapLong(&stu[i].num, &stu[j].num);     //交换学号 
+                SwapChar(stu[i].name, stu[j].name);     //交换姓名
+            }
+        }
+    }
+}
+
+//函数功能：按学号查找学生成绩并显示查找结果
+void SearchbyNum(STU stu[], int n, int m)
+{
+    long number;
+    int i, j;
+    printf("Input the number you want to search:");
+    scanf("%ld", &number);
+    for (i = 0; i < n; i++)
+        if (stu[i].num == number)
+        {
+            printf("\n");
+            for (j = 0; j < m; j++)
+                printf("%d\t", stu[i].score[j]);
+            printf("\n");
+            break;
+        }
+    if (i == n)
+        printf("\nNot found!\n");
+}
+
+//函数功能：按姓名查找学生成绩并显示查找结果
+void SearchbyName(STU stu[], int n, int m)
+{
+    char x[MAX_LEN];
+    int i, j;
+    printf("Input the name you want to search:");
+    scanf("%s", x);
+    for (i = 0; i < n; i++)
+    {
+        if (strcmp(stu[i].name, x) == 0)
+        {
+            printf("%ld\t%s\t", stu[i].num, stu[i].name);
+            for (j = 0; j < m; j++)
+            {
+                printf("%.0f\t", stu[i].score[j]);
+            }
+            printf(".0f\t%.0f\n", stu[i].sum, stu[i].aver);
+            return;
+        }
+    }
+    printf("\nNot found!\n");
+}
+
+//函数功能：统计各分数段的学生人数及所占的百分比
+void StatisticAnalysis(STU stu[], int n, int m)
+{
+    int i, j, t[6];
+    for (j = 0; j < m; j++)
+    {
+        printf("For course %d:\n", j + 1);
+        memset(t, 0, sizeof(t));        //将数组 t 的全部元素初始化为0
+        for (i = 0; i < n; i++)
+        {
+            if (stu[i].score[j] >= 0 && stu[i].score[j] < 60) t[0]++;
+            else if (stu[i].score[j] < 70)    t[1]++;
+            else if (stu[i].score[j] < 80)    t[2]++;
+            else if (stu[i].score[j] < 90)    t[3]++;
+            else if (stu[i].score[j] < 100)   t[4]++;
+            else if (stu[i].score[j] == 100)  t[5]++;
+        }
+        for (i = 0; i <= 5; i++)
+        {
+            if (i == 0) printf("<60\t%d\t%.2f%%\n", t[i], (float)t[i] / n * 100);
+            else if (i == 5) printf("%d\t%d\t%.2f%%\n", (i + 5) * 10, t[i], (float)t[i] / n * 100);
+            else printf("%d-%d\t%d\t%.2f%%\n", (i + 5) * 10, (i + 5) * 10 + 9, t[i], (float)t[i] / n * 100);
+        }
+    }
+}
+
+
+//函数功能：打印学生成绩
+void PrintScore(STU stu[], int n, int m)
+{
+    int i, j;
+    for (i = 0; i < n; i++)
+    {
+        printf("%ld\t%s\t", stu[i].num, stu[i].name);
+        for (j = 0; j < m; j++)
+        {
+            printf("%.0f\t", stu[i].score[j]);
+        }
+        printf("%.0f\t%.0f\n", stu[i].sum, stu[i].aver);
+    }
+}
+
+//输出 n 个学生的学号、姓名及 m 门课程的成绩到文件 student.txt 中
+void WritetoFile(STU stu[], int n, int m)
+{
+    FILE* fp;
+    int i, j;
+
+    if ((fp = fopen("student.txt", "w")) == NULL)
+    {
+        printf("Failure to open score.txt!\n");
+        exit(0);
+    }
+    fprintf(fp, "%d\t%d\n", n, m);    //将学生人数和课程门数写入文件
+    for (i = 0; i < n; i++)
+    {
+        fprintf(fp, "%10ld%10s", stu[i].num, stu[i].name);
+        for (j = 0; j < m; j++)
+        {
+            fprintf(fp, "%10.0f", stu[i].score[j]);
+        }
+        fprintf(fp, "%10.0f%10.0f\n", stu[i].sum, stu[i].aver);
+    }
+    fclose(fp);
+}
+
+//从文件中读取学生的学号、姓名及成绩等信息写入到结构体 stu 中
+void ReadfromFile(STU stu[], int* n, int* m)
+{
+    FILE* fp;
+    int i, j;
+    if ((fp = fopen("student.txt", "r")) == NULL)
+    {
+        printf("Failure to open score.txt!\n");
+        exit(0);
+    }
+    fscanf(fp, "%d\t%d", n, m); //从文件中读出学生人数，课程门数    
+    for (i = 0; i < *n; i++)  //学生人数保存在n指向的储存单元
+    {
+        fscanf(fp, "%10ld", &stu[i].num);
+        fscanf(fp, "%10s", stu[i].name);
+        for (j = 0; j < *m; j++) //课程门数保存在m指向的储存单元
+        {
+            fscanf(fp, "%10f", &stu[i].score[j]);          //不能用%10.0f
+        }
+        fscanf(fp, "%10f%10f", &stu[i].sum, &stu[i].aver);  //不能用%10.0f
+    }
+    fclose(fp);
+}
--- a/基本框架的修改.md
+++ b/基本框架的修改.md
@ -0,0 +1,312 @@
+### C1: 启动程序
+
+命令行中执行命令./app,系统启动，显示提示信息，然后显示功能菜单，等待用户输入命令。
+
+```
+Management for Students'scores
+
+1  Input record
+2  Calculate total and average score of every course
+3  Calculate total and average score of every student
+4  Sort in descending order by score
+5  Sort in ascending order by score
+6  Sort in ascending order by number
+7  Sort in dictionary order by name
+8  Search by number
+9  Search by name
+10 Statistic analysis
+11 List record
+12 Write to a file
+13 Read from a file
+0  Exit
+
+Please Input your choice:  
+
+```
+
+### C2: 显示命令菜单
+
+调用 Menu() 函数显示命令菜单，用户输入选项后，将结果返回主函数
+
+```
+Management for Students'scores
+
+1 Input record
+2 Calculate total and average score of every course
+3 Calculate total and average score of every student
+4 Sort in descending order by score
+5 Sort in ascending order by score
+6 Sort in ascending order by number
+7 Sort in dictionary order by name
+8 Search by number
+9 Search by name
+10 Statistic analysis
+11 List record
+12 Write to a file
+13 Read from a file
+0  Exit
+
+Please Input your choice:   
+
+```
+
+### C3: 退出程序
+
+选择菜单命令 0 ，再输入 y 确认，则退出程序。
+
+```
+Please Input your choice: 0
+Are you sure you want to exit?(Y/N): y
+End of program!
+
+```
+
+### C4: 添加学生信息
+
+选择菜单命令 1 ，假设n=4,m=3,提示输入学生的学号，姓名和成绩，然后利用循环逐个输入学生的学号和姓名以及各科成绩。
+
+```
+Please Input your choice: 1
+Input student's ID, name and score:
+2214111006 XuZilin 100 95 86
+2214111009 XuZigui 77 89 99
+2214111011 ZhangYu 85 91 98
+2214111025 LiYujia 75 89 100
+
+```
+
+### C5: 计算学生各门课程总分和平均分
+
+选择菜单命令 2 ，计算学生各门课程总分和平均分,然后利用循环逐个输出学生的顺序，总成绩和平均分，结果都取整数。
+
+```
+Please Input your choice: 2
+student 1: sum = 281, aver = 93
+student 2: sum = 265, aver = 88
+student 3: sum = 274, aver = 91
+student 4: sum = 264, aver = 88
+
+```
+
+### C6: 计算每门课程的总分和平均分
+
+选择菜单命令 3 ，计算每门课程的总分和平均分，然后利用循环逐个输出每门课程的总分和平均分，结果都取整数。
+
+```
+Please Input your choice: 3
+course 1: sum = 337, aver = 84
+course 2: sum = 364, aver = 91
+course 3: sum = 383, aver = 95
+
+```
+
+### C7: 学生总分排序
+
+如果a < b,则按升序排列。选择菜单命令 4 ，按选择法将数组 sum 的元素值按升序进行排序，显示提示信息，最后打印出学生信息。
+如果a > b,则按降序排序。选择菜单命令 5 ，按选择法将数组 sum 的元素值按降序进行排序，显示提示信息，最后打印出学生成绩。
+
+```
+Please Input your choice: 4
+Sort in descending order by score:
+2214111006 XuZilin 100 95 86 281 93
+2214111011 ZhangYu 85 91 98 274 91
+2214111009 XuZigui 77 89 99 265 88
+2214111025 LiYujia 75 89 100 264 88
+
+Please Input your choice: 5
+Sort in ascending order by score:
+2214111025 LiYujia 75 89 100 264 88
+2214111009 XuZigui 77 89 99 265 88
+2214111011 ZhangYu 85 91 98 274 91
+2214111006 XuZilin 100 95 86 281 93
+
+```
+
+### C8: 学号顺序排序
+
+选择菜单命令 6 ，按学号从小到大进行排序，显示提示信息，最后打印学生信息。
+```
+Please Input your choice: 6
+Sort in ascending order by number:
+2214111006 XuZilin 100 95 86 281 93
+2214111009 XuZigui 77 89 99 265 88
+2214111011 ZhangYu 85 91 98 274 91
+2214111025 LiYujia 75 89 100 264 88
+
+```
+
+### C9: 姓名顺序排序
+
+选择菜单命令 7 ，按姓名的字典顺序进行排序，显示提示信息，最后打印学生信息。
+
+```
+Please Input your choice: 7
+Sort in dictionary order by name:
+2214111025 LiYujia 75 89 100 264 88
+2214111009 XuZigui 77 89 99 265 88
+2214111006 XuZilin 100 95 86 281 93
+2214111011 ZhangYu 85 91 98 274 91
+
+```
+
+### C10: 学生信息查询
+
+- 选择菜单命令 8 ，提示输入学生学号，若该学号存在，则输出学生信息；否则提示没有找到并结束。
+
+```
+Please Input your choice: 8
+Input the number you want to search:2214111011
+2214111011 ZhangYu 85 91 98 274 91
+
+1 Input record
+2 Calculate total and average score of every course
+3 Calculate total and average score of every student
+4 Sort in descending order by score
+5 Sort in ascending order by score
+6 Sort in ascending order by number
+7 Sort in dictionary order by name
+8 Search by number
+9 Search by name
+10 Statistic analysis
+11 List record
+12 Write to a file
+13 Read from a file
+0  Exit
+
+Please Input your choice: 8
+Input the number you want to search:2214111001
+Not found!
+
+```
+
+- 选择菜单命令 9 ，提示输入学生姓名，若该姓名存在，则输出学生信息；否则提示没有找到并结束。
+
+```
+Please Input your choice: 9
+Input the name you want to search:LiYujia
+2214111025 LiYujia 75 89 100 264 88
+
+1 Input record
+2 Calculate total and average score of every course
+3 Calculate total and average score of every student
+4 Sort in descending order by score
+5 Sort in ascending order by score
+6 Sort in ascending order by number
+7 Sort in dictionary order by name
+8 Search by number
+9 Search by name
+10 Statistic analysis
+11 List record
+12 Write to a file
+13 Read from a file
+0  Exit
+
+Please Input your choice: 9
+Input the name you want to search:SunYizhe
+Not found!
+
+```
+
+### C11: 统计各分数段学生人数及所占百分比
+
+选择菜单命令 10，提示输入学生成绩，通过循环得出各分数段学生人数及所占百分比
+
+```
+Please Input your choice: 10
+For course 1:
+<60 0 0.00%
+60-70 0 0.00%
+70-80 2 50.00%
+80-90 1 25.00%
+90-100 0 0.00%
+100 1 25.00%
+For course 2:
+<60 0 0.00%
+60-70 0 0.00%
+70-80 0 00.00%
+80-90 2 50.00%
+90-100 2 50.00%
+100 0 0.00%
+For course 3:
+<60 0 0.00%
+60-70 0 0.00%
+70-80 0 0.00%
+80-90 1 25.00%
+90-100 2 50.00%
+100 1 25.00%
+
+```
+### C12: 打印学生信息
+
+选择菜单命令11，打印
+
+```
+Please Input your choice: 11
+2214111006 XuZilin 100 95 86 281 93
+2214111009 XuZigui 77 89 99 265 88
+2214111011 ZhangYu 85 91 98 274 91
+2214111025 LiYujia 75 89 100 264 88
+
+```
+
+### C13: 将学生信息保存在文件中
+
+选择菜单命令 12 ，将学生信息保存在文件 student.txt 中。如果文件不存在，则给出错误信息并退出程序，否则逐个读入
+
+```
+Please Input your choice: 12
+Failure to open score.txt!
+
+1 Input record
+2 Calculate total and average score of every course
+3 Calculate total and average score of every student
+4 Sort in descending order by score
+5 Sort in ascending order by score
+6 Sort in ascending order by number
+7 Sort in dictionary order by name
+8 Search by number
+9 Search by name
+10 Statistic analysis
+11 List record
+12 Write to a file
+13 Read from a file
+0  Exit
+
+Please Input your choice: 12
+2214111006 XuZilin 100 95 86 281 93
+2214111009 XuZigui 77 89 99 265 88
+2214111011 ZhangYu 85 91 98 274 91
+2214111025 LiYujia 75 89 100 264 88
+
+```
+
+### 从文件中读取学生信息
+
+选择菜单命令 13 ，从文件中读取学生的学号、姓名及成绩等信息写入到结构体数组 stu 中。如果文件为空，则给出错误信息并退出程序，反之，逐个读入
+
+```
+Please Input your choice: 13
+Failure to open score.txt!
+
+1 Input record
+2 Calculate total and average score of every course
+3 Calculate total and average score of every student
+4 Sort in descending order by score
+5 Sort in ascending order by score
+6 Sort in ascending order by number
+7 Sort in dictionary order by name
+8 Search by number
+9 Search by name
+10 Statistic analysis
+11 List record
+12 Write to a file
+13 Read from a file
+0  Exit
+
+Please Input your choice: 13
+2214111006 XuZilin 100 95 86 281 93
+2214111009 XuZigui 77 89 99 265 88
+2214111011 ZhangYu 85 91 98 274 91
+2214111025 LiYujia 75 89 100 264 88
+
+```
Author	SHA1	Message	Date
pvfj5ugro	a037933dfe	Merge pull request 'XZG——伪代码2' (#35 ) from XZG——伪代码2 into master	2 years ago
xuzigui	6b02178f28	XZG_伪代码2	2 years ago
xuzigui	5b3b6a12a1	XZG_伪代码	2 years ago
pvfj5ugro	dcba628f21	Merge pull request 'XZG_伪代码' (#34 ) from XZG_伪代码 into master	2 years ago
xuzigui	3fb95cd525	XZG_伪代码	2 years ago
Cx330	89f4dfff59	伪代码	2 years ago
Cx330	6d5711b197	Cx330_修	2 years ago
Cx330	3cb5288b72	修	2 years ago
Cx330	70006b0af7	修	2 years ago
Cx330	555ab8f73e	Merge remote-tracking branch 'origin/XZG_SortbyName流程图'	2 years ago
Cx330	7284cd53ed	修	2 years ago
pvfj5ugro	3b5537c19e	Merge pull request 'XZG_SortbyScore流程图' (#32 ) from xzg_SortbyScore流程图 into master	2 years ago
xuzigui	fdefd720c6	XZG_SortbyScore流程图	2 years ago
xuzigui	3d2ab7022f	XZG_SortbyName流程图	2 years ago
Cx330	351946e812	Merge remote-tracking branch 'origin/ZY-ReadfromFile'	2 years ago
Cx330	90d4e390b0	Merge remote-tracking branch 'origin/XZG_AverSumofEveryCourse流程图'	2 years ago
xuzigui	ed2925711d	XZG_AverSumofEveryCourse流程图	2 years ago
zhangyu	be7204dee6	ZY-ReadfromFile	2 years ago
Cx330	f495854818	整合	2 years ago
Cx330	df05ceafe7	Merge branch 'XZL_StatisticAnalysis'	2 years ago
Cx330	230a25dc2c	找bug	2 years ago
pvfj5ugro	bca412db24	Merge pull request 'ZY-WritetoFile' (#26 ) from ZY-WritetoFile into master	2 years ago
pvfj5ugro	1bcd4f8f5d	Merge pull request 'XZG_AsScortbyNum流程图' (#23 ) from XZG_AsScortbyNum流程图 into master	2 years ago
zhangyu	3f5fdb39a4	ZY-ReadfromFile	2 years ago
zhangyu	70cbd02ddb	ZY-WritetoFile	2 years ago
xuzilin	cf25fa56c9	XZL_StatisticAnalysis	2 years ago
zhangyu	1e046ecec5	ZY-PrintScore	2 years ago
pvfj5ugro	fd6c804976	Merge pull request 'SearchbyName' (#22 ) from XZL_SearchbyName into master	2 years ago
xuzigui	fa5c4d5347	XZG_AsScotbyNum流程图	2 years ago
xuzilin	28cf36b917	XZL_SearchbyName	2 years ago
pvfj5ugro	9eae6c6625	Merge pull request 'XZL_SearchbyNum' (#21 ) from SearchbyNum into master	2 years ago
pvfj5ugro	67c8919844	Merge pull request 'XZG_SortbyScore流程图' (#20 ) from xzg_SortbyScore into master	2 years ago
xuzilin	5f38e8efd5	SearchbyNum	2 years ago
xuzigui	7117c5e40b	XZG_SortbyScore	2 years ago
Cx330	7a0a5fb3e7	Merge branch 'Cx330_AverSumofEveryStudent'	2 years ago
Cx330	e49ae6eb79	Cx330_AverSumofEveryStudent	2 years ago
Cx330	488deb5721	Merge branch 'Cx330_ReadScore'	2 years ago
Cx330	5923b7ca2f	Cx330_ReadScore	2 years ago
Cx330	b200d3af48	删	2 years ago
Cx330	13bb2e47b1	代码修改	2 years ago
Cx330	90e8b13f94	头文件	2 years ago
Cx330	78c87d1a7c	CX330_修	2 years ago
Cx330	3605f6ca52	主修	2 years ago
Cx330	5f616d8255	调	2 years ago
Cx330	b6405f7519	main函数详细实现修	2 years ago
Cx330	5fedf865c7	Merge branch 'XZG_main函数详细实现流程图'	2 years ago
Cx330	0666b1fc7e	修_详细	2 years ago
Cx330	69f9911caa	代码实现	2 years ago
xuzigui	de9b7b0385	XZG_main函数详细实现流程图	2 years ago
Cx330	4d96a1aba2	修	2 years ago
Cx330	111eed7db1	修	2 years ago
Cx330	64544b4a95	main	2 years ago
Cx330	3e945bcdeb	修	2 years ago
Cx330	96d3c49030	main	2 years ago
Cx330	63404ddfeb	main	2 years ago
Cx330	f987df2efb	main.drawio.svg	2 years ago
Cx330	ba9f79f7f7	流程图	2 years ago
Cx330	e1cac7db9e	修	2 years ago
Cx330	a0bf16a2f7	补	2 years ago
Cx330	c132f41642	修	2 years ago
Cx330	0ba6336420	4.22	2 years ago
Cx330	b8f9ee46db	4.22	2 years ago
Cx330	156688b21c	Cx330_小修小补	2 years ago
Cx330	f4c98ff742	Cx330_小修小补	2 years ago
Cx330	448327de49	Cx330_小修小补	2 years ago
Cx330	7458a3c62b	Cx330_小修小补	2 years ago
Cx330	fe174a473b	Cx330_小修小补	2 years ago
Cx330	b431400e8c	Merge branch 'Cx330_小修小补'	2 years ago
Cx330	2ea5abfa36	Cx330_基本框架	2 years ago
pvfj5ugro	4e88648cbc	Merge pull request '函数功能：打印学生成绩' (#18 ) from XZL_打印学生成绩 into master	2 years ago
Cx330	12c7c3044c	Cx330_基本框架	2 years ago
Cx330	5313d49f27	Cx330_基本框架	2 years ago
xuzilin	da7ccd365a	XZL_打印学生成绩	2 years ago
Cx330	3a91792eb9	Merge branch 'Cx330_统计各分数段的学生人数及所占的百分比'	2 years ago
Cx330	ab295085df	Cx330_按学号查找学生成绩并显示查找结果	2 years ago
pvfj5ugro	aa6c5e7f88	Merge pull request 'ZY_输入n个同学的m门成绩' (#11 ) from ZY_输入n个同学的m门成绩 into master	2 years ago
pvfj5ugro	5a589a345d	Merge pull request 'XZG_按选择法将数组num的元素值从低到高排序' (#13 ) from XZG_按选择法将将数组num的元素值从低到高排序 into master	2 years ago
pvfj5ugro	f76fc34c96	Merge pull request 'XZG_交换法实现字符串按字典顺序排序' (#15 ) from XZG_交换法实现字符串按字典顺序排序 into master	2 years ago
pvfj5ugro	ab9b1a27c0	Merge pull request 'ZY_计算每门课程的总分和平均分' (#16 ) from ZY_计算每门课程的总分和平均分 into master	2 years ago
pvfj5ugro	dd453fd30e	Merge pull request 'XZG_从文件中读取学生的学号、姓名及成绩等信息写入到结构体 stu 中' (#17 ) from XZG_从文件中读取学生的学号，姓名，成绩等信息写入结构体stu中 into master	2 years ago
xuzigui	531518b4d1	XZG_从文件中读取学生的学号、姓名及成绩等信息写入到结构体 stu 中	2 years ago
xuzigui	829ec0a6ec	XZG_交换法实现字符串按字典顺序排序	2 years ago
zhangyu	a690413caf	ZY_计算每门课程的总分和平均分	2 years ago
zhangyu	086f488654	ZY_计算每个学生各门课程总分和平均分	2 years ago
xuzigui	65006f2573	XZG_按元素法将数组num的元素值从低到高排序	2 years ago
zhangyu	fd28057d9d	ZY_显示菜单并获得输入选项	2 years ago
pvfj5ugro	3286ed8637	Merge pull request '输出 n 个学生的学号、姓名及 m 门课程的成绩到文件 student.txt 中' (#10 ) from XZL_输出n个学生的学号、姓名及m门课程的成绩到文件中 into master	2 years ago
zhangyu	22c5588af5	ZY_输入n个同学的m门成绩	2 years ago
xuzilin	7368fa23c7	XZL_输出n个学生的学号、姓名及m门课程的成绩到文件中	2 years ago
pvfj5ugro	9f16984ddf	Merge pull request 'XZG_按选择法将sum的元素值排序' (#8 ) from XZG_按选择法将数组sum的元素值排序 into master	2 years ago
zhangyu	5570fb65d5	ZY_显示菜单并获得输入选项	2 years ago
xuzigui	8562e0239d	XZG_按选择法将数组SUM的元素值排序	2 years ago
xuzilin	75231e3048	XZL_输出n个学生的学号、姓名及m门课程的成绩到文件中	2 years ago
pvfj5ugro	6a05da907d	Merge pull request '交换两个字符串' (#6 ) from XZL_交换两个字符串 into master	2 years ago
pvfj5ugro	54d589004e	Merge pull request '交换两个长整型数据' (#5 ) from XZL_交换两个长整型数据 into master	2 years ago
Cx330	b3266be02c	Merge branch 'Cx330_按学号查找学生成绩并显示查找结果'	2 years ago
Cx330	4be591b3eb	Cx330_按学号查找学生成绩并显示查找结果	2 years ago
pvfj5ugro	e5864e6679	Merge pull request '交换两个单精度浮点型数据' (#4 ) from XZL_交换两个单精度浮点型数据 into master	2 years ago
pvfj5ugro	f21b8e33a4	Merge pull request '使数据按降序排序' (#3 ) from XZL_使数据按降序排序 into master	2 years ago
Cx330	ca77e46583	Cx330_统计各分数段的学生人数及所占的百分比	2 years ago