Submission #98251

#	Time	Username	Problem	Language	Result	Execution time	Memory
98251		Vasiljko	Easter Eggs (info1cup17_eastereggs)	C++14	0 / 100	4 ms	640 KiB

eastereggs

#include <bits/stdc++.h>
#include "grader.h"
using namespace std;

typedef long long ll;
const ll MOD = 1e9+7;

int n,cnt,ans;
vector<int>v[550];

void dfs(int s,int p){
    cnt++;
    if(ans)return;
    if(cnt==n&&!ans){
        ans=s;
        return;
    }
    vector<int>t;
    t.push_back(s);
    if(query(t)){
        ans=s;
        return;
    }
    for(auto e:v[s])if(e!=p)dfs(e,s);
}

int findEgg(int N,vector<pair<int,int> >b){
    n=N;
    for(int i=0;i<n;i++)v[i].clear();
    for(auto e:b){
        v[e.first].push_back(e.second);
        v[e.second].push_back(e.first);
    }
    ans=0;
    cnt=0;
    dfs(1,0);

    return ans;
}

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