#include <bits/stdc++.h>
#define ll long long
#define F first
#define S second
#define endl '\n'
#define Endl '\n'

using namespace std;

const int N = 2e5 + 5;
int tc, n, m, a[N];

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); // cout.tie(0);
    cin >> tc;
    while (tc--) {
        set<int> st;
        cin >> n;
        for (int i = 0; i < n; i++) {
            cin >> a[i];
            st.insert(a[i]);
        }

        if (*st.begin() == 1 && *st.end() == n && st.size() == n) {
            cout << "YES" << endl;
        } else {
            cout << "NO" << endl;
        }
    }

    return 0;
}