제출 #606003

#제출 시각아이디문제언어결과실행 시간메모리
606003polya기지국 (IOI20_stations)C++17
0 / 100
1 ms428 KiB
#include "stations.h" #include <vector> using namespace std; vector<int> adj[1004]; vector<int> labels; int cnt = 0; int dfs(int nn) { if (labels[nn] != 10000) return 0; labels[nn] = cnt++; for (auto &ii : adj[nn]) dfs(ii); } vector<int> label(int n, int k, vector<int> u, vector<int> v) { labels.resize(n, 10000); for (int i=0; i<n-1; i++) { adj[u[i]].emplace_back(v[i]); adj[v[i]].emplace_back(u[i]); } for (int i=0; i<n; i++) { if (adj[i].size() == 1) dfs(i); } return labels; } int find_next_station(int s, int t, std::vector<int> c) { if (s < t) return s+1; else return s-1; }

컴파일 시 표준 에러 (stderr) 메시지

stations.cpp: In function 'int dfs(int)':
stations.cpp:14:1: warning: control reaches end of non-void function [-Wreturn-type]
   14 | }
      | ^
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