제출 #998983

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
998983		vjudge1	Birmingham (COCI20_birmingham)	C++17	70 / 70	101 ms	8276 KiB

birmingham

#include <bits/stdc++.h>

using namespace std;

const int M = 1e5 + 1;

vector<int> nei[M];
int dis[M];
bool vis[M];

void bfs(vector<int> v)
{
	for (int i=0;i<M;i++)
		dis[i]=M;
	queue<int> q;
	for (int i:v)
		dis[i]=0,q.push(i);
	while (!q.empty())
	{
		int u=q.front();
		q.pop();
		for (int i:nei[u])
			if (!vis[i] && dis[i]>dis[u]+1)
			{
				vis[i]=true;
				dis[i]=dis[u]+1;
				q.push(i);
			}
	}
}

int wtf(int d)
{
	for (int i=0;i<=d;i++)
		if (i*(i+1)/2>=d)
			return i;
}

int main()
{
	int n,m,q,k;
	cin>>n>>m>>q>>k;
	vector<int> v(q);
	for (int i=0;i<q;i++)
		cin>>v[i];
	for (int i=0;i<m;i++)
	{
		int u,v;
		cin>>u>>v;
		nei[u].push_back(v);
		nei[v].push_back(u);
	}
	bfs(v);
	for (int i=1;i<=n;i++)
	{
		int d=(dis[i]+k-1)/k;
		cout<<wtf(d)<<' ';
	}
	cout<<endl;
	
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

birmingham.cpp: In function 'int wtf(int)':
birmingham.cpp:37:1: warning: control reaches end of non-void function [-Wreturn-type]
   37 | }
      | ^

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
• Subtask 6: 5 / 5
• Subtask 7: 5 / 5
• Subtask 8: 5 / 5
• Subtask 9: 5 / 5
• Subtask 10: 5 / 5
• Subtask 11: 5 / 5
• Subtask 12: 5 / 5
• Subtask 13: 5 / 5
• Subtask 14: 5 / 5