Submission #1254087

#TimeUsernameProblemLanguageResultExecution timeMemory
1254087nickolasarapidisWorld Map (IOI25_worldmap)C++20
15 / 100
14 ms2888 KiB
#include "worldmap.h" #include <bits/stdc++.h> using namespace std; vector<int> adj[45]; vector<int> et; vector<bool> visited(45); void dfs(int s, int e){ et.push_back(s); if(visited[s]) return; visited[s] = true; for(auto u : adj[s]){ if(u == e) continue; dfs(u, s); et.push_back(s); } } vector<vector<int>> create_map(int N, int M, vector<int> A, vector<int> B){ for(int i = 0; i < 45; i++){ visited[i] = false; } for(int i = 0; i < M; i++){ adj[A[i]].push_back(B[i]); adj[B[i]].push_back(A[i]); } dfs(1, -1); vector<vector<int>> ans(et.size(), vector<int>(et.size())); for(int i = 0; i < et.size(); i++){ for(int j = 0; j < et.size(); j++){ ans[i][j] = et[i]; } } for(int i = 0; i < 45; i++){ adj[i].clear(); } et.clear(); return ans; }
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