제출 #692447

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
692447		MateiKing80	Easter Eggs (info1cup17_eastereggs)	C++14	0 / 100	1 ms	500 KiB

eastereggs

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

using namespace std;

vector<int>ord;
vector<int> v[600];
void dfs(int nod, int tata)
{
    ord.push_back(nod);
    for(int i=0;i<v[nod].size();i++)
    {
        if(v[nod][i]!=tata)
            dfs(v[nod][i],nod);
    }
}

int sus(int st, int dr)
{
    vector<int>vct;
    for(int i=st;i<=dr;i++)
        vct.push_back(ord[i]);
    int x=query( vct );
    return x;
}



int findEgg(int n, vector<pair<int, int> >  bridge)
{
    for(int i=0;i<n-1;i++)
    {
        v[bridge[i].first].push_back(bridge[i].second);
        v[bridge[i].second].push_back(bridge[i].first);
    }
    dfs(1,0);
    int poz=0, pas= (1<<(int)log2(n)) ;
    while(pas>0)
    {
        if(!sus(poz,poz+pas))
            poz=poz+pas+1;
        pas/=2;
    }
    return poz;
}

컴파일 시 표준 에러 (stderr) 메시지

eastereggs.cpp: In function 'void dfs(int, int)':
eastereggs.cpp:11:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |     for(int i=0;i<v[nod].size();i++)
      |                 ~^~~~~~~~~~~~~~

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