Submission #392986

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
392986	2021-04-22 13:26:57	REALITYNB	Stations (IOI20_stations)	C++14	30.95 / 100	1190 ms	784 KiB

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#include <bits/stdc++.h> 
#include "stations.h"
#define pii pair<int,int> 
#define in first 
#define out second
#define mp make_pair 
using namespace std; 
vector<int> label(int n ,int k , vector<int> u , vector<int> v){
  vector<int> ans(n) ; 
  vector<int> adj[n] ; 
  for(int i=0;i<n-1;i++) {
    adj[u[i]].push_back(v[i]) ; 
    adj[v[i]].push_back(u[i]) ; 
  }
  int tim = 0 ; 
  vector<int> inn(n) , outt(n) ; 
  function<void(int,int)> dfs = [&](int a, int p){
    inn[a]=tim++; 
    for(int x :adj[a]){
      if(x!=p){
        dfs(x,a) ; 
      }
    }
    outt[a]=++tim ; 
  }; 
  dfs(0,0) ; 
  for(int i=0;i<n;i++)
    ans[i]=inn[i]+((outt[i])<<11);
  return ans ; 
 
 
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• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 10 / 10
• Subtask 5: 20.948 / 61