题解 | 小乐乐算多少人被请家长

#include <stdio.h>

int main() {
    int n = 0;
    int language = 0;
    int math = 0;
    int english = 0;
    int ave = 0;
    int ret = 0;
    int i = 0;
    scanf("%d", &n);
    for (i = 0; i < n; i++) {
        scanf("%d %d %d", &language, &math, &english);
        ave = (language + math + english) / 3;
        if (ave < 60) {
            ret++;
        }
    }
    printf("%d", ret);
    return 0;
}