#include"testlib.h"
#include<bits/stdc++.h>
using namespace std;
using ll = long long;

const ll Tmin = 1, Tmax = 200'000;
const ll Nmin = 1, Nmax = 200'000;
const ll Nsummax = 200'000;

int main(){
    registerValidation();

    ll Nsum = 0;
    ll T = inf.readLong(Tmin, Tmax);
    inf.readEoln();
    for (ll i = 1; i <= T; i++){
        ll N = inf.readLong(Nmin, Nmax);
        inf.readEoln();
        Nsum += N;
        inf.ensuref(Nsum <= Nsummax, "Nsum <= 200'000");
        vector<ll> P(N);
        for (ll j = 1; j <= N; j++){
            if (j != 1){
                inf.readSpace();
            }
            P[j-1] = inf.readLong(1LL, N);
        }
        inf.readEoln();
        ranges::sort(P);
        for (ll j = 1; j <= N; j++){
            inf.ensuref(P[j-1] == j, "P is permutation of (1,2,...,N)");
        }
    }

    inf.readEof();
}