func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t, n;     cin >> t;     for (int l = 0; l < t; l++) {       cin >> n;       int k;       k = 0;       int c;       c = 0;       char arr[n][5];       for (int i = 0; i < n; i++) {         for (int j = 0; j < 5; j++) {           cin >> arr[i][j];         }       }       for (int j = 0; j < 5; j++) {         k = 0;         for (int m = j + 1; m < 5; m++) {           int first = 0;           int second = 0;           int tie = 0;           for (int n1 = 0; n1 < n; n1++) {             if (arr[n1][j] ==  1  && arr[n1][m] ==  1 ) {               tie++;             } else {               if (arr[n1][j] ==  1 ) {                 second++;               }               if (arr[n1][m] ==  1 ) {                 first++;               }             }           }           if (first + second + tie == n && second + tie >= n / 2 &&               first + tie >= n / 2) {             c = 1;           }         }       }       if (c == 0) {         cout <<  NO  << endl;       } else {         cout <<  YES  << endl;       }     }     return 0;   }   