답안 #98256

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
98256	2019-02-21T17:22:59 Z	Vasiljko	Easter Eggs (info1cup17_eastereggs)	C++14	컴파일 오류	0 ms	0 KB

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],seq;

void dfs(int s,int p){
    seq.push_back(s);
    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);
    }
    seq.clear();
    dfs(1,0);

    int l=0;
    int r=n-1;

    while(l<=r){
        int mid=(l+r)>>1;
        q.clear();
        for(int i=0;i<=mid;i++)q.push_back(seq[i]);
        if(query(q)){
            r=mid-1;
            ans=mid;
        }else{
            l=mid+1;
        }
    }


    return seq[ans];
}

Compilation message

eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:31:9: error: 'q' was not declared in this scope
         q.clear();
         ^