Submission #689635

#	Time	Username	Problem	Language	Result	Execution time	Memory
689635		Warinchai	Birmingham (COCI20_birmingham)	C++14	45 / 70	204 ms	10316 KiB

birmingham

#include<bits/stdc++.h>
using namespace std;
queue<pair<int,int> >q;
vector<int>v[200005];
int path[200005];
int main(){
	int n,m,nn,k;
	cin>>n>>m>>nn>>k;
	for(int i=1;i<=n;i++){
		path[i]=INT_MAX;
	}
	for(int i=0;i<nn;i++){
		int a;
		cin>>a;
		q.push({a,0});
		path[a]=0;
	}
	for(int i=0;i<m;i++){
		int a,b;
		cin>>a>>b;
		v[a].push_back(b);
		v[b].push_back(a);
	}
	//cout<<"info\n";
	while(!q.empty()){
		int a=q.front().first;
		int b=q.front().second;
		//cout<<a<<" "<<b<<endl;
		q.pop();
		for(int i=0;i<v[a].size();i++){
			if(b+1<path[v[a][i]]){
				path[v[a][i]]=b+1;
				q.push({v[a][i],b+1});
			}
		}
	}
	for(int i=1;i<=n;i++){
		int st=0,en=700,ans=0;
		while(en>=st){
			int md=(st+en)/2;
			if(md*(md+1)/2*k>=path[i]){
				ans=md;
				en=md-1;
			}else{
				st=md+1;
			}
		}
		cout<<ans<<" ";
	}
}

Compilation message (stderr)

birmingham.cpp: In function 'int main()':
birmingham.cpp:30:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |   for(int i=0;i<v[a].size();i++){
      |               ~^~~~~~~~~~~~

• 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: 0 / 5
• Subtask 10: 0 / 5
• Subtask 11: 0 / 5
• Subtask 12: 5 / 5
• Subtask 13: 0 / 5
• Subtask 14: 0 / 5