제출 #769057

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
769057		RushB	Newspapers (CEOI21_newspapers)	C++17	8 / 100	1 ms	340 KiB

newspapers

#include "bits/stdc++.h"
#define int long long
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
using namespace std;
const long long INF = 1ll << 60;
const int N = 1000 + 5;

signed main() {
	ios::sync_with_stdio(0), cin.tie(0);
	int n, m;
	cin >> n >> m;
	if (m >= n) {
		cout << "NO\n";
		return 0;
	}
	FOR(i, 1, n) {
		int u, v; cin >> u >> v;	
	}
	cout << "YES\n";
	if (n <= 2) {
		cout << n << '\n';
		FOR(i, 0, n) cout << 1 << ' ';
		return 0;
	}
	cout << 2 * n - 4 << '\n';
	FOR(i, 1, n - 1) cout << i + 1 << ' ';
	FOR(i, 1, n - 1) cout << n - i << ' ';
	cout << '\n';
	return 0;
}
//Reading this fills you with DETERMINATION
//20:06:46

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