Source Code
#include <bits/stdc++.h>

using namespace std;
int main() {
	int t; cin >> t;
	while (t--) {
		int n; cin >> n;
		vector<int>v(n);
		int m = 0, co = 0;
		for (int i = 0; i < n; i++)
		{
			cin >> v[i];
			m = max(m, v[i]);
		}
		for (int i = 0; i < n; i++)
			if (m == v[i]) co++;

		for (int i = 0 ; i< co; i++)
			cout << m << " ";
		cout << endl;
	}
}

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GNU G++17
283 ms
1.2 MB
Accepted