func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     vector<vector<int>> v;     v.resize(n, vector<int>(7));     for (int i = 0; i < n; i++) {       for (int j = 0; j < 7; j++) {         scanf( %1d , &v[i][j]);       }     }     int max_rooms = 0, cur = 0;     for (int i = 0; i < 7; i++) {       for (int j = 0; j < n; j++) {         cur += v[j][i];       }       max_rooms = max(max_rooms, cur);       cur = 0;     }     cout << max_rooms << endl;     return 0;   }   