Submission #1235103

#	Time	Username	Problem	Language	Result	Execution time	Memory
1235103		laurra	Easter Eggs (info1cup17_eastereggs)	C++20	87 / 100	8 ms	504 KiB

eastereggs

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

using namespace std;

#define dim 514
vector<int> v[dim],a;
void dfs(int nod,int tata)
{
    a.push_back(nod);
    for(auto y:v[nod])
    {
        if(y!=tata)
        {
            dfs(y,nod);
        }
    }
}
int findEgg (int N, vector < pair < int, int > > bridges)
{
    int i,st,dr,mijl,maxi;
    for(i=1;i<=N;i++)
    {
        v[i].clear();
    }
    for(auto muchie : bridges)
    {
        v[muchie.first].push_back(muchie.second);
        v[muchie.second].push_back(muchie.first);
    }
    a.clear();
    dfs(1,0);
    st=0;dr=N-1;
    maxi=-1;
    while(st<=dr)
    {
        mijl=(st+dr)/2;
        vector<int> q;
        for(i=0;i<=mijl;i++)
            q.push_back(a[i]);
        if(query(q))
        {
            dr=mijl-1;
        }
        else
        {
            if(mijl>maxi)
                maxi=mijl;
            st=mijl+1;
        }
    }
    return a[maxi+1];
}

• Subtask 1: 32 / 40
• Subtask 2: 40 / 40
• Subtask 3: 15 / 20