#include <bits/stdc++.h>   using namespace std;   const int MAXN = 2e6 + 1;   const int INF = 2e9 + 1;   const int MOD = (1e9 + 7);   void bye(string s =   ) {     cout << s <<   n ;     exit(0);   }   signed main() {     ios::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);     int t = 1;     cin >> t;     while (t--) {       int n;       cin >> n;       vector<int> arr(2);       for (int i = 0; i < n; i++) {         int a;         cin >> a;         arr[a % 2]++;       }       if (arr[1] % 2 || (arr[1] && arr[0])) {         cout <<  YES n ;       } else {         cout <<  NO n ;       }     }     bye();   }   