Submission #586492

#TimeUsernameProblemLanguageResultExecution timeMemory
586492MohamedFaresNebiliStations (IOI20_stations)C++14
0 / 100
3139 ms2097152 KiB
#include <bits/stdc++.h> #include "stations.h" /// #pragma GCC optimize ("Ofast") /// #pragma GCC target ("avx2") /// #pragma GCC optimize("unroll-loops") using namespace std; using ll = long long; using ii = pair<int, int>; using vi = vector<int>; #define ff first #define ss second #define pb push_back #define all(x) (x).begin(), (x).end() #define lb lower_bound const int MOD = 1000 * 1000 * 1000 + 7; int timer, tin[1001]; vector<int> adj[1001]; void dfs(int v, int p) { for(auto u : adj[v]) { if(u == p) continue; dfs(u, v); } tin[v] = timer++; } vector<int> label(int N, int K, vector<int> U, vector<int> V) { for(int l = 0; l < N - 1; l++) { int X = U[l], Y = V[l]; adj[X].pb(Y), adj[Y].pb(X); } dfs(0, 0); vector<int> res(N); for(int l = 0; l < N; l++) res[l] = tin[l]; return res; } int find_next_station(int S, int T, vector<int> C) { for(auto u : C) { if(u < T) continue; return u; } return S; }
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