题解 | 小乐乐算多少人被请家长

#include <stdio.h>

int main() 
{
    int num=0;
    int China=0;
    int Math=0;
    int English=0;
    scanf("%d",&num);
    int count =0;
    while ((scanf("%d %d %d",&China,&Math,&English)!=EOF)) //文件没有结束之前进入循环
    {
        //printf("%d %d %d\n",China,Math,English);
        float average = (China+Math+English)/3.0;
        if (average<60.0) 
        { 
            count++;
        }
    }
    printf("%d",count);
    return 0;
}