func_code_string: #include <bits/stdc++.h>   using namespace std;   void solve();   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     int t;     cin >> t;     while (t--) {       solve();       cout <<   n ;     }     cerr <<  time taken :   << (float)clock() / CLOCKS_PER_SEC <<   secs  << endl;     return 0;   }   void solve() {     long long n;     cin >> n;     long long a[n];     for (long long i = 0; i < n; i++) cin >> a[i];     sort(a, a + n);     long long s = 0;     for (long long i = 1; i < n; i++) {       if (a[i] == a[i - 1]) s++;     }     if (s)       cout <<  YES ;     else       cout <<  NO ;   }   