From f19bdcc45421bc7d7fa4b3c411f8d8590e861fa3 Mon Sep 17 00:00:00 2001
From: p10369542 <710993622@qq.com>
Date: Fri, 11 Jan 2019 15:01:01 +0800
Subject: [PATCH] first commit

---
 1.c | 104 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 1.c

diff --git a/1.c b/1.c
new file mode 100644
index 0000000..dc45aaf
--- /dev/null
+++ b/1.c
@@ -0,0 +1,104 @@
+#include<stdio.h>
+#include<stdlib.h>                                      //随机数
+int main()                                              //主函数
+{int a,b,c,i=0,j=0,num=0,k;                             //j代表分数，
+	rule();
+	while(1)
+	{	a=rand()%50;
+		b=rand()%50;
+		c=rand();
+		if(a<b)
+		{	k=a;
+			a=b;
+			b=k;
+		}
+		if((a+b)>0&&(a+b)<50)
+		{	num++;
+			printf("NO.%d  ",num);
+			j=j+exam(a,b,c);
+			i++;
+		}
+		if(i>=10)
+		{	great(j);
+			break;
+		}
+	}
+	printf("==================\n");
+return 0;
+}
+int rule()                                               //定义规则
+{	printf("===============================\n");
+	printf("欢迎小朋友来答题，规则如下：\n");	
+	printf("共有10道题，每题有三次答题机会。\n");	
+	printf("第一次答对得10分\n");	
+	printf("第二次答对得7分\n");
+	printf("第三次答对得5分，答错不得分.\n");
+	printf("下面请开始你的表演!!!\n");
+	printf("================================\n");
+	return 0;
+}		
+int great(int n)                                         //定义成绩等级
+{	printf("你的成绩是%d分\n",n);
+	if(n>90)
+		printf("SMATE\n");
+	else if(n>=80&&n<=90)
+		printf("GOOD\n");
+	else if(n>=70&&n<80)
+		printf("OK\n");
+	else if(n>=60&&n<70)
+		printf("PASS\n");
+	else 
+		printf("TRY AGAIN\n");
+	return 0;
+}
+int exam(int a,int b,int c)                             //计算得分
+{	int m,n,j=0,i;
+	if(c%2==0)
+	{	n=a-b;
+		printf("%d-%d=",a,b);
+		for(i=0;i<3;i++)
+		{	scanf("%d",&m);
+			if(n==m)
+			{	if(i==0)
+					j=10;
+				else if(i==1)
+					j=7;
+				else
+					j=5;
+				break;
+			}
+			else
+			{	printf("      答案错误\n");
+				if(i<2)
+					printf("      请重新输入:");
+				if(i==2)
+					printf("      正确答案是%d\n",n);
+			}
+		}
+	}
+	else if(c%2!=0)
+	{	n=a+b;
+		printf("%d+%d=",a,b);
+		for(i=0;i<3;i++)
+		{	scanf("%d",&m);
+			if(m==n)
+			{	if(i==0)
+					j=10;
+				else if(i==1)
+					j=7;
+				else
+					j=5;
+				break;
+			}
+			else
+			{	printf("      答案错误\n");
+				if(i<2)
+					printf("      请重新输入:");
+				if(i==2)
+					printf("      正确答案是%d\n",n);
+			}
+		}
+	}
+	printf("__________________\n");
+	return j;
+}