[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);
		}
	}
}