답안 #484560

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
484560	2021-11-04T12:00:43 Z	MohamedFaresNebili	Easter Eggs (info1cup17_eastereggs)	C++14	컴파일 오류	0 ms	0 KB

eastereggs

#include <bits/stdc++.h>
/// #pragma GCC optimize ("Ofast")
/// #pragma GCC target ("avx2")

        using namespace std;

        using ll  = long long;
        using vi  = vector<int>;

        #define pb push_back
        #define ff first
        #define ss second
        #define lb lower_bound
        #define all(x) (x).begin() , (x).end()

        #include "grader.h"

        vector<int>adj[555], id;
        void dfs(int v, int p) {
            id.pb(v);
            for(auto u: adj[v]) { 
                if(u == p) continue;
                dfs(u, v);
            }
        }

        int findEgg (int N, vector < pair < int, int > > bridges)
        {
            for(int l = 1; l <= N; l++) adj[l].clear();
            id.clear();
            for(auto u : bridges) {
                int a = u.ff, b = u.ss;
                adj[a].pb(b); adj[b].pb(a);
            }
            dfs(1, 1);
            int lo = 0, hi = N - 1;
            while(lo <= hi) {
                int md = (lo + hi)/2;
                if(query(vector<int>(id.begin() + lo, id.begin() + mid))) hi = md - 1;
                else lo = md;
            }
            return id[lo];
        }

Compilation message

eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:39:68: error: 'mid' was not declared in this scope; did you mean 'md'?
   39 |                 if(query(vector<int>(id.begin() + lo, id.begin() + mid))) hi = md - 1;
      |                                                                    ^~~
      |                                                                    md