제출 #859495

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
859495		Tenis0206	Newspapers (CEOI21_newspapers)	C++11	0 / 100	1 ms	600 KiB

newspapers

#include <bits/stdc++.h>

using namespace std;

const int nmax = 1e3;

int n,m;

vector<int> G[nmax + 5];

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    #ifdef home
    freopen("nr.in","r",stdin);
    freopen("nr.out","w",stdout);
    #endif // home
    cin>>n>>m;
    for(int i=1;i<n;i++)
    {
        int x,y;
        cin>>x>>y;
        G[x].push_back(y);
        G[y].push_back(x);
    }
    if(n > 3)
    {
        cout<<"NO"<<'\n';
        return 0;
    }
    cout<<"YES"<<'\n';
    if(n==1)
    {
        cout<<"1\n1\n";
        return 0;
    }
    if(n==2)
    {
        cout<<"2"<<'\n';
        cout<<"1 1"<<'\n';
        return 0;
    }
    if(n==3)
    {
        cout<<"2"<<'\n';
        cout<<"2 2"<<'\n';
        return 0;
    }
    return 0;
}

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