제출 #1343119

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1343119		lkateris	Easter Eggs (info1cup17_eastereggs)	C++20	컴파일 에러	0 ms	0 KiB

eastereggs

#include <iostream>
#include <vector>

using namespace std;

vector<int> adj[600];
vector<int> order;

void dfs(int x,int p=-1) {
    order.push_back(x);

    for(auto e:adj[x]) {
        if (e==p) continue;

        dfs(e,x);
    }
    return;
}

int findEgg(int N, vector < pair < int, int > > bridges) {

    for(int i=1;i<N;++i) {
        auto e = bridges[i];

        adj[e.first].push_back(e.second);
        adj[e.second].push_back(e.first);
    }
    dfs(1);

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

    while (l < r) {
        int mid = (l+r+1)/2;
        if (query(vector<int>(order.begin(),order.begin()+mid))) r = mid-1;
        else l = mid;
    }

    return order[l];
}

컴파일 시 표준 에러 (stderr) 메시지

eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:35:13: error: 'query' was not declared in this scope
   35 |         if (query(vector<int>(order.begin(),order.begin()+mid))) r = mid-1;
      |             ^~~~~