Submission #1064810

#	Time	Username	Problem	Language	Result	Execution time	Memory
1064810		goduadzesaba	Easter Eggs (info1cup17_eastereggs)	C++17	100 / 100	10 ms	600 KiB

eastereggs

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

using namespace std;
int n,l,r,md; vector <int> g[1000],a,b;
void dfs (int i,int p){
	a.push_back(i);
	for (int j:g[i]){
		if (j==p) continue;
		dfs(j,i);
	}
}
int findEgg (int N, vector < pair < int, int > > bridges){
	n=N; a.clear();
	for (int i=1; i<=n; i++) g[i].clear();
	for (auto i:bridges){
		g[i.first].push_back(i.second);
		g[i.second].push_back(i.first);
	}
	dfs(1,0);
	l=0; r=n-1;
	while (l<r){
		md=(l+r)/2; b.clear();
		for (int i=0; i<=md; i++)
			b.push_back(a[i]);
		if (query(b)) r=md;
		else l=md+1;
	}
	return a[l];
}

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