제출 #713221

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
713221		Pacybwoah	Newspapers (CEOI21_newspapers)	C++14	0 / 100	1 ms	212 KiB

newspapers

#include<iostream>
#include<vector>
using namespace std;
vector<vector<int>> graph;
int main(){
    int n,m;
    cin>>n>>m;
    int a,b;
    graph.resize(n+1);
    for(int i=0;i<m;i++){
        cin>>a>>b;
        graph[a].push_back(b);
        graph[b].push_back(a);
    }
    if(n==3||n==2){
        cout<<"YES\n2\n2 2";
    }
    else if(n==1){
        cout<<"YES\n1\n1";
    }
    else{
        cout<<"YES\n";
        cout<<(n-1)*2<<"\n";
        for(int i=2;i<=n;i++) cout<<i<<" "<<i;
    }
}

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