Submission #980490

#	Time	Username	Problem	Language	Result	Execution time	Memory
980490		rumbin	어르신 집배원 (BOI14_postmen)	C++17	0 / 100	1 ms	348 KiB

postmen

#include <bits/stdc++.h>

using namespace std;

vector<set<int>> E;

void dfs(int u, int s)
{
	int v = *E[u].begin();
	E[u].erase(E[u].begin());
	E[v].erase(E[v].find(u));
	if(v == s)
	{
		cout<<u<<' ';
		return;
	}
	dfs(v, s);
		cout<<u<<' ';
	
}

int main()
{
	int N,M;
	cin>>N>>M;
	E.assign(N+1,{});
	for(int i=0; i<M; i++)
	{
		int u,v;
		cin>>u>>v;
		E[u].insert(v);
		E[v].insert(u);
	}
	for(int i=1; i<=N; i++)
	{
		if(E[i].size() > 1)
		{
			dfs(i,i);
			cout<<endl;
		}
	}
}

• Subtask 1: 0 / 38
• Subtask 2: 0 / 17
• Subtask 3: 0 / 45