제출 #1211992

#제출 시각아이디문제언어결과실행 시간메모리
1211992trimkusLongest Trip (IOI23_longesttrip)C++20
5 / 100
329 ms724 KiB
#include "longesttrip.h" #include <bits/stdc++.h> using namespace std; int N; std::vector<int> longest_trip(int _N, int D) { N = _N; vector<int> adj[N]; for (int i = 0; i < N; ++i) { for (int j = i + 1; j < N; ++j) { if (are_connected({i}, {j})) { adj[i].push_back(j); adj[j].push_back(i); } } } // for (int i = 0; i < N; ++i) { // cout << i << " : "; // for (auto& u : adj[i]) { // cout << u << " "; // } // cout << "\n"; // } // cout << "\n"; vector<int> res; vector<bool> vis(N); res.push_back(0); vis[0] = 1; while (true) { bool done = false; for (auto& u : adj[res.back()]) { if (!vis[u]) { vis[u] = true; res.push_back(u); done = true; break; } } if (!done) break; } return res; }
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