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program 7.c

@@ -0,0 +1,111 @@
+#include<stdio.h>
+#include<string.h> 
+struct stu
+{
+	int num,c;
+	char name[20];
+	float m,p,e;
+};
+
+struct stu stu[7]={{10001,11,"Zhang",99.5,88.5,89.5},
+						{10002,12,"Yang",77.9,56.5,87.5},
+						{10003,11,"Liang",92.5,99.0,60.5},
+						{10004,11,"Cai",89.6,56.9,90.5},
+						{10005,14,"Fu",55.6,67.9,98.9},
+						{10006,12,"Mao",22.1,45.9,99.2},
+						{10007,13,"Zhan",35.6,67.9,88.0}};
+
+
+void a1()
+{int to,from,i;
+scanf("%d-%d",&from,&to);
+for(i=0;i<7;i++) if(from<=stu[i].c&&stu[i].c<=to) printf("%d %d %s %.1f %.1f %.1f\n",stu[i].num,stu[i].c,stu[i].name,stu[i].m,stu[i].p,stu[i].e);
+}
+
+void a2()
+{int to,from,i;
+scanf("%d-%d",&from,&to);
+for(i=0;i<7;i++) if(to<=stu[i].num&&stu[i].num<=from) printf("%d %d %s %.1f %.1f %.1f\n",stu[i].num,stu[i].c,stu[i].name,stu[i].m,stu[i].p,stu[i].e);
+}
+
+void a3()
+{
+	int i,j;
+	char n[20];
+	scanf("%s",n);
+	for(i=0;i<7;i++)
+	{
+		j=0;
+		while(n[j]!='*'&&stu[i].name[j]==n[j]) j++;
+		if(n[j]=='*') printf("%d %d %s %.1f %.1f %.1f\n",stu[i].num,stu[i].c,stu[i].name,stu[i].m,stu[i].p,stu[i].e);
+	}
+}
+
+void a4()
+{
+	int i;
+	float lim,s;
+	scanf("%d",&lim);
+	for(i=0;i<7;i++)
+	{
+		s=stu[i].m+stu[i].p+stu[i].e;
+		if(s>=lim) printf("%d %d %s %.1f %.1f %.1f\n",stu[i].num,stu[i].c,stu[i].name,stu[i].m,stu[i].p,stu[i].e);
+	}
+}
+
+void a5()
+{
+	int cl,to,from,i;
+	scanf("%d.%d-%d",&cl,&from,&to);
+	for(i=0;i<7;i++)
+	{
+		if(stu[i].c==cl&&from<=stu[i].num&&stu[i].num<=to)
+		{
+			printf("%d %d %s %.1f %.1f %.1f\n",stu[i].num,stu[i].c,stu[i].name,stu[i].m,stu[i].p,stu[i].e);
+		}
+	}
+}
+void min(struct stu *stu,int n)
+{
+	int i,j;
+	struct stu t;
+	for(i=0;i<n;i++)
+	{
+		for(j=0;j<n-i-1;j++)
+		{
+			if(((stu+j)->c>(stu+j+1)->c)||((stu+j)->c==(stu+j+1)->c)&&((stu+j)->num>(stu+j+1)->num))
+			{
+				t = *(stu+j);
+				*(stu+j) = *(stu+j+1);
+				*(stu+j+1) = t;
+			} 
+		}
+	}
+	return;
+}
+
+int main()
+{
+	int n;
+	scanf("%d",&n);
+	min(stu,7);
+	switch(n)
+	{
+		case(1):
+			a1();
+			break;
+		case(2):
+			a2();
+			break;
+		case(3):
+			a3();
+			break;
+		case(4):
+			a4();
+			break;
+		case(5):
+			a5();
+			break;
+	}
+	return 0;
+}