func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     string s[n];     for (int i = 0; i < n; i++) {       cin >> s[i];       bool b = false;       if (i == 0) {         cout <<  NO  << endl;         continue;       }       for (int j = 0; j < i; j++) {         if (s[j] == s[i]) {           cout <<  YES  << endl;           b = true;           break;         }       }       if (!b) {         cout <<  NO  << endl;       }     }     return 0;   }   