func_code_string: #include <bits/stdc++.h>   using namespace std;   template <typename Arg1>   void __f(const char* name, Arg1&& arg1) {     cerr << name <<   :   << arg1 << std::endl;   }   template <typename Arg1, typename... Args>   void __f(const char* names, Arg1&& arg1, Args&&... args) {     const char* comma = strchr(names + 1,  , );     cerr.write(names, comma - names) <<   :   << arg1 <<   |  ;     __f(comma + 1, args...);   }   const int mod = 1e9 + 7;   int main() {     int n;     cin >> n;     map<string, int> mp;     for (int i = 0; i < n; i++) {       string s;       cin >> s;       if (mp.find(s) != mp.end()) {         cout <<  YES n ;         continue;       } else {         cout <<  NO n ;         mp[s] = 1;       }     }     return 0;   }   