题解 | #小乐乐算多少人被请家长#

#include <stdio.h>
int main() {
    int n = 0;
    int count = 0;
    int i = 0, j = 0;
    int arr1[100] = { 0 };
    int arr2[100] = { 0 };
    int arr3[100] = { 0 };
    scanf("%d", &n);
    for (i = 0; i < n; i++) {
        scanf("%d %d %d", &arr1[i], &arr2[i], &arr3[i]);
        if ((arr1[i] + arr2[i] + arr3[i]) / 3 < 60)
            count++;
    }
    printf("%d\n", count);
    return 0;
}