CDVR3.3

#include <bits/stdc++.h>
using namespace std;
const int mxn = 2e5;
                                    //#define Kin

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);

#ifdef Kin
    (void)!freopen("input.txt", "r", stdin);
    (void)!freopen("output.txt", "w", stdout);
#endif

    int t;
    cin >> t;
    while (t--)
    {
        int n;
        cin >> n;
        vector<long long> res(n, -1);
        stack<pair<int, long long>> s;
        for (int i = 0; i < n; i++)
        {
            long long k;
            cin >> k;
            while (!s.empty() && s.top().second < k)
            {
                res[s.top().first] = k;
                s.pop();
            }
            s.push(make_pair(i, k));
        }
        for (long long i = 0; i < n; i++)
            cout << res[i] << ' ';
        cout << '\n';
    }
    return 0;
}