Test Case Generator

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

int rand(int l, int r){
	static mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
	uniform_int_distribution<int> uid(l, r); return uid(rng);
}

signed main() {
	srand(time(nullptr));

	ofstream out;
	out.open("input.txt");

	int t = rand(1, 4);
	out << t << '\n';
	while(t--) {
		int n;
		n = rand(1, 10);
		out << n << '\n';
		while(n--)
			out << rand(1, 25) << ' ';
		out << '\n';
	}
}