# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
439476 | 2021-06-30T05:47:47 Z | Yazan_Alattar | Easter Eggs (info1cup17_eastereggs) | C++14 | 0 ms | 0 KB |
#include <iostream> #include <fstream> #include <cstring> #include <cmath> #include <queue> #include <map> #include <set> #include <vector> #include <algorithm> using namespace std; #define endl "\n" #define F first #define S second #define pb push_back typedef long long ll; const int M = 530; const int mod = 1e9+7; vector <int> adj[M], path; void dfs(int node, int p) { path.pb(node); for(auto i : adj[node]){ if(i == p) continue; dfs(i, node); } return; } int findEgg(int n, vector < pair <int,int> > bridges) { for(auto i : bridges){ adj[i.F].pb(i.S); adj[i.S].pb(i.F); } dfs(1, 0); int l = 0, r = n; while(l < r){ int mid = (l + r) / 2; vector <int> v; for(int i = 0; i < mid; ++i) v.pb(path[i]); if(query(v)) r = mid; else l = mid + 1; } return l; }