제출 #1257978

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1257978		OgradL	Easter Eggs (info1cup17_eastereggs)	C++20	0 / 100	0 ms	456 KiB

eastereggs

#include <bits/stdc++.h>
#include "grader.h"

using namespace std;

int findEgg (int N, vector<pair<int, int>> bridges){

	vector<vector<int>> adj(N+1);
	for (int i = 0; i < N-1; i++){
		adj[bridges[i].first].push_back(bridges[i].second);
		adj[bridges[i].second].push_back(bridges[i].second);
	}

	vector<int> order, seen(N+1, 0);
	queue<int> q;
	q.push(1);

	while (!q.empty()){
		int n = q.front();
		q.pop();
		
		order.push_back(n);
		seen[n] = 1;

		for (int x : adj[n]){
			if (!seen[x]){
				q.push(x);
			}
		}
	}

	return 1;

	int ans;
	int lo = -1, hi = N-1, mid;
	while (lo + 1 < hi){
		mid = (lo + hi) / 2;

		vector<int> s;
		for (int i = 0; i <= mid; i++){
			s.push_back(order[i]);
		}

		if (query(s)){
			hi = mid;
		} else {
			lo = mid;
		}
	}

	return order[hi];
}

• Subtask 1: 0 / 40
• Subtask 2: 0 / 40
• Subtask 3: 0 / 20