Question

大一c语言编程

大一c语言编程3.17题

Answer 1

#include <time.h>
#include <stdlib.h>
#include <stdio.h>
int main(){
    int i=10;
    int wrongCount=0;
    while(i--){
        srand(time(NULL));
        int a=rand()%100;
        int b=rand()%100;
        printf("%d+%d=",a,b);
        int c=a+b,result;
        scanf("%d",&result);
        printf("正确答案:%d\n",c); 
        if(c!=result){
            wrongCount++;
            printf("回答错误！\n");
        }
        else printf("回答正确！\n");
    }
    printf("正确率:%d%%",100-wrongCount*10);
}