第一周 结对编程四则运算

 1 #include<stdio.h>
 2 #include<string.h>
 3 #include<time.h>
 4 #include<stdlib.h>
 5 int main()
 6 {
 7       char str[]="+-*/";
 8   srand(time(0));
 9       int res[10];
10       for(int i = 0;i<=9;i++)
11       {
12             int a = rand()%100+1;
13             int b = rand()%100+1;
14             int c = rand()%4;
15             if(c==3)
16             {
17                 while(a%b) a = rand()%100+1,b = rand()%100+1;     
18             }
19             printf("%d %c %d\n",a,str[c],b);
20             if(c==0) res[i] = a+b;
21             else if(c==1) res[i] = a-b;
22             else if(c==2) res[i] = a*b;
23             else res[i] = a/b;
24       }
25       int s[10];
26       printf("请输入答案用空格分开\n");
27       for(int i=0;i<=9;i++)
28       {
29        scanf("%d",&s[i]);
30       }
31       for(int i=0;i<=9;i++)
32       {
33           if(s[i]!=res[i])
34           {
35               printf("第%d道题错了，正确答案为%d\n",i+1,res[i]);
36            }
37       }
38       return 0;
39 }