#include<bits/stdc++.h>
using namespace std;

void solve(){
    int n;
    cin >> n;
    vector<int> arr(n);
    for(int i=0; i<n; ++i){
        cin >> arr[i];
    }
    sort(arr.begin(), arr.end());
    bool z = true;
    for (int i = 0; i < n; ++i) {
        if (arr[i] != i + 1) {
            z = false;
            break;
        }
    }

    if(z){
        cout << "YES" << endl;
    } 
    else {
        cout << "NO" << endl;
    }
}

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

}