Submission #97688

#	Time	Username	Problem	Language	Result	Execution time	Memory
97688		KLPP	Easter Eggs (info1cup17_eastereggs)	C++14	6 / 100	5 ms	620 KiB

eastereggs

#include <bits/stdc++.h>
#include "grader.h"
 
using namespace std;
typedef pair<int,int> pii;

int findEgg (int N, vector < pair < int, int > > bridges)
{
	vector<int> nei[N];
	int n=N;
	for(int i=0;i<bridges.size();i++){
		nei[bridges[i].first-1].push_back(bridges[i].second-1);
		nei[bridges[i].second-1].push_back(bridges[i].first-1);
	}
	pii dist[n];
	for(int i=0;i<n;i++){
		dist[i].first=-1;
		dist[i].second=i;
	}
	/*queue<int> q;
	q.push(0);
	dist[0].first=0;
	while(!q.empty()){
		int u=q.front();q.pop();
		for(int i=0;i<nei[u].size();i++){
			int v=nei[u][i];
			if(dist[v].first==-1){
				dist[v].first=dist[u].first+1;
				q.push(v);
			}
		}
	}
	sort(dist,dist+n);*/
	for(int i=0;i<n;i++){
		vector<int> v;
		v.push_back(i+1);
		if(query(v))return i+1;
	}
	//for(int i=0;i<n;i++)cout<<dist[i].second<<endl;
	/*int lo=0;
	int hi=n;
	while(hi-lo>1){
		int mid=(hi+lo)/2;
		vector<int> v;
		for(int i=0;i<mid;i++)v.push_back(dist[i].second+1);
		if(query(v)){
			hi=mid;
		}else lo=mid;
	}
	return lo+1;*/
	return 0;
}

Compilation message (stderr)

eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:11:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<bridges.size();i++){
              ~^~~~~~~~~~~~~~~

• Subtask 1: 6 / 40
• Subtask 2: 0 / 40
• Subtask 3: 0 / 20