#include <iostream>
#include <algorithm>
using namespace std;

void solve()
{
    int n;
    cin >> n;
    int a[n];
    for (int i = 0; i < n; i++)
        cin >> a[i];
    int result = 0;

    sort (a, a+n);

    for (int i = 0; i < n; i++)
    {
        if (a[i] != i + 1)
        {
            result++;
            break;
        }
    }

    cout << (result == 0 ? "YES" : "NO") << endl;
}

int main()
{
    int t;
    cin >> t;
    while (t--)
        solve();
    return 0;
}