func_code_string: #include <bits/stdc++.h>   using namespace std;   int32_t main() {     long long t;     cin >> t;     while (t--) {       long long n;       cin >> n;       long long arr[n];       for (long long i = 0; i < n; i++) cin >> arr[i];       sort(arr, arr + n);       bool f = 1;       for (long long i = 1; i < n; i++) {         if (arr[i] - arr[i - 1] > 1) f = 0;       }       if (f)         cout <<  YES n ;       else         cout <<  NO n ;     }     return 0;   }   