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Submission #1064810

# Submission time Handle Problem Language Result Execution time Memory
1064810 2024-08-18T18:01:15 Z goduadzesaba Easter Eggs (info1cup17_eastereggs) C++17
100 / 100
 10 ms 600 KB 
#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
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Number of queries: 4
2 Correct 1 ms 344 KB Number of queries: 4
3 Correct 0 ms 344 KB Number of queries: 4
4 Correct 0 ms 344 KB Number of queries: 4

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 344 KB Number of queries: 8
2 Correct 6 ms 344 KB Number of queries: 9
3 Correct 9 ms 344 KB Number of queries: 9
4 Correct 9 ms 600 KB Number of queries: 9

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 532 KB Number of queries: 9
2 Correct 8 ms 504 KB Number of queries: 9
3 Correct 9 ms 488 KB Number of queries: 9
4 Correct 9 ms 600 KB Number of queries: 9