func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, res = 0, i, t;     vector<string> v;     cin >> n;     for (i = 0; i < n; i++) {       string s;       cin >> s;       v.push_back(s);     }     for (int j = 0; j < 7; j++) {       t = 0;       for (i = 0; i < n; i++) {         if (v[i][j] ==  1 ) t++;       }       res = max(t, res);     }     cout << res << endl;   }   