제출 #1136654

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1136654		Petrix	Easter Eggs (info1cup17_eastereggs)	C++20	100 / 100	8 ms	512 KiB

eastereggs

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

vector<int> a;
vector<int> v[513];
int viz[513];
vector<int> aux;

void dfs(int nod){
    int i;
    viz[nod]=1;
    a.push_back(nod);
    for(i=0;i<v[nod].size();i++){
        if(viz[v[nod][i]]==0) dfs(v[nod][i]);
    }
}

int findEgg(int n,vector<pair<int,int>> bridges){
    a.clear();aux.clear();
    int st,dr,rasp,mij,i;
    for(i=0;i<=512;i++){
      v[i].clear();viz[i]=0;
    }
    for(i=0;i<bridges.size();i++){
        v[bridges[i].first].push_back(bridges[i].second);
        v[bridges[i].second].push_back(bridges[i].first);
    }
    dfs(1);
    st=rasp=0;dr=a.size()-1;
    while(st<dr){
        mij=(st+dr)/2;aux.clear();
        for(i=0;i<=mij;i++){
            aux.push_back(a[i]);
        }
        if(query(aux)){
            dr=mij;
        }else st=mij+1;
    }
    return a[st];

}

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