Submission #534986

#	Time	Username	Problem	Language	Result	Execution time	Memory
534986		Karuk	Newspapers (CEOI21_newspapers)	C++14	4 / 100	2 ms	332 KiB

newspapers

#include<bits/stdc++.h>
using namespace std;
vector<int>v[1001];
int main()
{
    int n,m;
    cin>>n>>m;
    for(int i=0;i<m;i++)
    {
        int x,y;
        cin>>x>>y;
        v[x].push_back(y);
        v[y].push_back(x);
    }
    if(m>=n)cout<<"NO";
    else
    {
        int cnt2,cntbig;
        cnt2=cntbig=0;
        for(int i=1;i<=n;i++)
        {
            if(v[i].size()==2)cnt2++;
            if(v[i].size()>2)cntbig++;
        }
        if(cntbig>0 && cntbig+cnt2>1){cout<<"NO\n";}
        else cout<<"YES\n1\n1";
    }
    return 0;
}

• Subtask 1: 0 / 12
• Subtask 2: 4 / 8
• Subtask 3: 0 / 80