Submission #963099

#TimeUsernameProblemLanguageResultExecution timeMemory
963099biankEaster Eggs (info1cup17_eastereggs)C++14
0 / 100
218 ms131072 KiB
#include <bits/stdc++.h> #include "grader.h" using namespace std; const int MAX_N = 512; vector<int> adj[MAX_N], islands; void dfs(int u, int p = -1) { islands.push_back(u + 1); for (int v : adj[u]) { if (v != p) dfs(v, u); } } int findEgg (int N, vector<pair<int, int>> bridges) { for (int i = 0; i < N - 1; i++) { auto [u, v] = bridges[i]; --u, --v; adj[u].push_back(v); adj[v].push_back(u); } dfs(0); int l = 0, r = N; while (l + 1 < r) { int m = (l + r) / 2; if (query(vector<int>(begin(islands) + l, begin(islands) + m))) { r = m; } else { l = m; } } return islands[l]; }

Compilation message (stderr)

eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:19:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   19 |         auto [u, v] = bridges[i];
      |              ^
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