题解 | #小乐乐算多少人被请家长#

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        while(scan.hasNextInt()) {
            int n = scan.nextInt();
            int x = 0;//统计不及格的人数
            for(int i = 1; i <= n; i++) {
                int c = scan.nextInt();//语文
                int m = scan.nextInt();//数学
                int e = scan.nextInt();//英语
                int total = c + m + e;
                if(total / 3 < 60) {
                    x++;
                }
            }
            System.out.println(x);
        }
    }
}