题解 | #小乐乐算多少人被请家长#

#include <stdio.h>

int main()
{
	int n = 0;//人数
	int yu[114514] = { 0 };
	int shu[114514] = { 0 };
	int eng[114514] = { 0 };
	int pj[114514] = { 0 };//你是一个一个一个成绩，啊啊^
	int sum = 0;
	scanf("%d", &n);
	
	for (int i = 0; i < n; i++)
	{
		scanf("%d %d %d", &yu[i], &shu[i], &eng[i]);
		pj[i] = (yu[i] + shu[i] + eng[i]) / 3;
		if (pj[i] < 60)
		{
			sum = sum+1;
		}
		
	}
	printf("%d",sum );

	return 0;
}