제출 #1045243

#제출 시각아이디문제언어결과실행 시간메모리
1045243VMaksimoski008기지국 (IOI20_stations)C++17
0 / 100
1 ms600 KiB
#include "stations.h" #include <bits/stdc++.h> using namespace std; const int maxn = 1005; vector<int> graph[maxn], L; void dfs(int u, int p) { for(int &v : graph[u]) { if(v == p) continue; L[v] = L[u] + 1; dfs(v, u); } } vector<int> label(int n, int k, vector<int> u, vector<int> v) { for(int i=0; i<n; i++) graph[i].clear(), L[i] = 0; for(int i=0; i<n-1; i++) { graph[u[i]].push_back(v[i]); graph[v[i]].push_back(u[i]); } L.resize(n); for(int i=0; i<n; i++) { if(graph[i].size() == 1) { dfs(i, i); break; } } return L; } int find_next_station(int s, int t, vector<int> c) { if(s < t) { for(int &x : c) if(x > s) return x; return -1; } for(int &x : c) if(x < s) return x; return -1; }
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