SeveralAndMochasArray_1789a.cpp

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

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  int t; cin >> t;
  while (t--) {
    int n; cin >> n;
    vector<int> a(n);
    for (auto &x : a) cin >> x;
  }
  return 0;
}