题解 | #小乐乐算多少人被请家长#

#include <stdio.h>
int main() {
    int n = 0;
    int a = 0,b = 0,c = 0;
    int count=0;
    scanf("%d",&n);
    while (scanf("%d %d %d",&a,&b,&c)!=EOF) {       
       if ((a+b+c)/3<60) {
              count++;
       }
    }
    printf("%d",count);
    return 0;
}