func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     int n, m;     cin >> n >> m;     char **a = new char *[n];     for (int i = 0; i < n; i++) {       a[i] = new char[m + 1];       cin >> a[i];     }     for (int i = 0; i < n; i++)       for (int j = 0; j < m; j++)         for (int k = 0; k < n; k++)           for (int l = 0; l < m; l++) {             if (i == k && j == l) {               continue;             }             if (a[i][j] ==  W  || a[k][l] ==  W ) {               continue;             }             bool found1 = true;             for (int i1 = j; i1 <= l; i1++) {               if (a[i][i1] ==  W ) {                 found1 = false;                 break;               }             }             for (int i1 = i; i1 <= k; i1++) {               if (a[i1][l] ==  W ) {                 found1 = false;                 break;               }             }             if (found1) {               continue;             }             found1 = true;             for (int i1 = i; i1 <= k; i1++) {               if (a[i1][j] ==  W ) {                 found1 = false;                 break;               }             }             for (int i1 = j; i1 <= l; i1++) {               if (a[k][i1] ==  W ) {                 found1 = false;                 break;               }             }             if (found1) {               continue;             } else {               cout <<  NO ;               return 0;             }           }     cout <<  YES ;   }   