题解 | #A+B for Matrices#

#include <iostream>
#include <vector>
using namespace std;

int main() {
    int a, b;
    while (cin >> a ) { // 注意 while 处理多个 case
        if(a==0)
        break;
        cin>> b;
        vector<vector<int>> k1(a, vector<int> (b));
        vector<vector<int>> k2(a, vector<int> (b));
        vector<vector<int>> k3(a, vector<int> (b));
        int k = 0;
        for (int i = 0; i < a; i++) {
            for (int j = 0; j < b; j++) {
                cin >> k1[i][j];
            }
        }
        for (int i = 0; i < a; i++) {
            for (int j = 0; j < b; j++) {
                cin >> k2[i][j];
            }
        }
        for (int i = 0; i < a; i++) {
            for (int j = 0; j < b; j++) {
                k3[i][j] = k2[i][j] + k1[i][j];
            }
        }
        for (int i = 0; i < a; i++) {
            int f = 0;
            for (int j = 0; j < b; j++) {
                if (k3[i][j]) {
                    f = 1;
                    break;
                }
            }
            if (f == 0)
                k++;
        }
        for (int j = 0; j < b; j++) {
            int f = 0;
            for (int i = 0; i < a; i++) {
                if (k3[i][j]) {
                    f = 1;
                    break;
                }
            }
            if (f == 0)
                k++;
        }
        cout << k << endl;
    }
}
// 64 位输出请用 printf("%lld")