oj.uz

답안 #1057176

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1057176 2024-08-13T14:44:06 Z Drifter24 Easter Eggs (info1cup17_eastereggs) C++14
0 / 100
 1 ms 600 KB 
#include <bits/stdc++.h>
using namespace std;

int query(vector < int > islands);
void dfs(int v, int p, vector<vector<int>>& adj, vector<int>& ans){
	ans.push_back(v);
	for(int u:adj[v]){
		if(u==p)continue;
		dfs(u, v, adj, ans);
	}
}

int findEgg(int N, vector < pair < int, int > > bridges){
	vector<int> ans;
	vector<vector<int>> adj(N+1, vector<int>());
	for(auto x:bridges){
		adj[x.first].push_back(x.second);
		adj[x.second].push_back(x.first);
	}
	dfs(1, 0, adj, ans);
	int l=0,r=N-1;
	while(r!=l){
		int m=(r+l+1)/2;
		vector<int> q;
		for(int i=0;i<=m;++i)q.push_back(ans[i]);
		if(query(q))r=m-1;
		else l=m;
	}
	return ans[l];
}

Subtask #1
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 600 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 0 ms 600 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 600 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -