HDOJ 2560 Buildings (水题)

HDACM 2560

import java.util.Scanner;public class Main{    public static void main(String[] args) {        Scanner sc = new Scanner(System.in);        int t = sc.nextInt();        while(t-->0){            int n = sc.nextInt();            int m = sc.nextInt();            int count = 0;            for (int i = 0; i < n; i++) {                for (int j = 0; j < m; j++) {                    int x = sc.nextInt();                    if (x==1) {                        count++;                    }                }            }            System.out.println(count);        }        sc.close();    }}