제출 #1125113

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1125113		Pannda	Newspapers (CEOI21_newspapers)	C++20	0 / 100	1 ms	328 KiB

newspapers

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

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

    int n, m;
    cin >> n >> m;

    vector<vector<int>> adj(n);
    for (int i = 0; i < m; i++) {
        int u, v;
        cin >> u >> v;
        u--;
        v--;
        adj[u].push_back(v);
        adj[v].push_back(u);
    }

    if (m != n - 1) {
        cout << "NO\n";
        return 0;
    }

    if (n >= 5) {
        cout << "NO\n";
    } else if (n == 4) {
        cout << "YES\n";
        cout << "5\n";
        cout << "2 2 3 3 2\n";
    } else if (n == 2 || n == 3) {
        cout << "YES\n";
        cout << "2\n2 2\n";
    } else {
        cout << "YES\n1\n1\n";
    }
}

• Subtask 1: 0 / 12
• Subtask 2: 0 / 8
• Subtask 3: 0 / 80