Submission #1259427

#TimeUsernameProblemLanguageResultExecution timeMemory
1259427truongdz_top12Easter Eggs (info1cup17_eastereggs)C++20
Compilation error
0 ms0 KiB
#include "grader.h" #include<bits/stdc++.h> using namespace std; vector<int>adj[513],order; void DFS(int u,int f) { order.push_back(u); for(auto&v:adj[u]) if(v!=f) DFS(v,u); } int findEgg(int N,vector<pair<int,int>>bridges) { order.clear(); for(int u=1;u<=n;++u) adj[u].clear(); for(auto&[u,v]:bridges) { adj[u].push_back(v); adj[v].push_back(u); } DFS(1,0); int l=0,r=N-1; while(l<r) { int mid=(l+r+1)>>1; if(query(vector<int>(order.begin(),order.begin()+mid))==1) r=mid-1; else l=mid; } return order[l]; }

Compilation message (stderr)

eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:15:20: error: 'n' was not declared in this scope
   15 |     for(int u=1;u<=n;++u)
      |                    ^