func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 505;   int a[maxn][maxn], b[maxn][maxn];   int main() {     int n, m;     scanf( %d%d , &n, &m);     for (int i = 1; i <= n; i++)       for (int j = 1; j <= m; j++) scanf( %d , &a[i][j]);     for (int i = 1; i <= n; i++)       for (int j = 1; j <= m; j++) scanf( %d , &b[i][j]);     bool flag = 1;     for (int i = 1; i <= n; i++) {       int cnt = 0;       for (int j = 1; j <= m; j++)         if (a[i][j] != b[i][j]) cnt++;       if (cnt % 2) flag = 0;     }     for (int j = 1; j <= m; j++) {       int cnt = 0;       for (int i = 1; i <= n; i++)         if (a[i][j] != b[i][j]) cnt++;       if (cnt % 2) flag = 0;     }     if (flag)       printf( Yes n );     else       printf( No n );   }   