This time, you are supposed to find A+B where A and B are two matrices, and then count the number of zero rows and columns.

    The input consists of several test cases, each starts with a pair of positive integers M and N (≤10) which are the number of rows and columns of the matrices, respectively. Then 2*M lines follow, each contains N integers in [-100, 100], separated by a space. The first M lines correspond to the elements of A and the second M lines to that of B.

    The input is terminated by a zero M and that case must NOT be processed.

    For each test case you should output in one line the total number of zero rows and columns of A+B.

2 2
1 1
1 1
-1 -1
10 9
2 3
1 2 3
4 5 6
-1 -2 -3
-4 -5 -6
0

1

5

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n, m;
        while ((n = in.nextInt()) != 0) {
            m = in.nextInt();
            int[][] a = new int[n][m];
            for (int i = 0; i < n; i++) {
                for (int j = 0; j < m; j++) {
                    a[i][j] = in.nextInt();
                }
            }
            for (int i = 0; i < n; i++) {
                for (int j = 0; j < m; j++) {
                    a[i][j] += in.nextInt();
                }
            }
            int result = 0;
            for (int i = 0; i < n; i++) {
                result++;
                for (int j = 0; j < m; j++) {
                    if (a[i][j] != 0) {
                        result--;
                        break;
                    }
                }
            }
            for (int j = 0; j < m; j++) {
                result++;
                for (int i = 0; i < n; i++) {
                    if (a[i][j] != 0) {
                        result--;
                        break;
                    }
                }
            }
            System.out.println(result);
        }
    }
}
/**************************************************************
    Problem: 1001
    User: 蘭陵笑笑生
    Language: Java
    Result: Accepted
    Time:890 ms
    Memory:18804 kb
****************************************************************/