[hdoj试题]Buildings

import java.util.*;

public class Main {public static void main(String[] args) {Scanner scanner = new Scanner(System.in);int t = scanner.nextInt();for(int k = 0 ;k<t;k++){int n = scanner.nextInt();int m = scanner.nextInt();int[][] a = new int[n][m];int cont = 0;for(int i = 0;i<n;i++){for(int j = 0;j<m;j++){a[i][j] = scanner.nextInt();if(a[i][j]==1){cont++;}}}System.out.println(cont);}}}