Submission #990321

#TimeUsernameProblemLanguageResultExecution timeMemory
990321alex_2008Easter Eggs (info1cup17_eastereggs)C++14
Compilation error
0 ms0 KiB
#include "grader.h" #include <bits/stdc++.h> using namespace std; vector <vector<int>> G; vector <int> order; int dfs(int v, int p) { order.push_back(v); for (auto it : G[v]) { if (it == p) continue; dfs(it, v); } } int findEgg(int N, vector < pair < int, int > > bridges) { order.clear(); G.clear(); G.resize(N + 1); for (auto &it : bridges) { G[it.first].push_back(it.second); G[it.second].push_back(it.first); } dfs(1, -1); int ans = n - 1; int l = 0, r = n - 2; while (l <= r) { vector <int> w; int mid = (l + r) / 2; for (int i = 0; i <= mid; i++) { w.push_back(order[i]); } if (query(w)) { ans = mid; r = mid - 1; } } return order[ans]; }

Compilation message (stderr)

eastereggs.cpp: In function 'int dfs(int, int)':
eastereggs.cpp:12:1: warning: no return statement in function returning non-void [-Wreturn-type]
   12 | }
      | ^
eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:22:12: error: 'n' was not declared in this scope
   22 |  int ans = n - 1;
      |            ^