func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t;     cin >> t;     while (t--) {       int n;       cin >> n;       int arr[n];       set<int> s;       for (int i = 0; i < n; i++) {         int temp;         cin >> temp;         s.insert(temp);       }       if (s.size() != n)         cout <<  YES n ;       else         cout <<  NO  << endl;     }   }   