Submission #306667

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
306667	2020-09-26 05:36:48	errorgorn	Stations (IOI20_stations)	C++17	100 / 100	1166 ms	1536 KiB

stations

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#include "stations.h"
 
#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
#define ii pair<ll,ll>
#define fi first
#define se second
 
#define rep(x,s,e) for (auto x=(s)-((s)>(e));x!=(e)-((s)>(e));((s)<(e)?x++:x--))
#define all(x) (x).begin(),(x).end()
#define sz(x) (int) (x).size()
 
 
//idea is label stores in and out time. this is bounded by 1000**2
 
vector<int> al[1005];
int in[1005];
int out[1005];
int d[1005];
 
int TIME;
void dfs(int i,int p){
  in[i]=++TIME;
  
  for (auto &it:al[i]){
    if (it==p) continue;
    
    d[it]=d[i]+1;
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 8 / 8
• Subtask 3: 16 / 16
• Subtask 4: 10 / 10
• Subtask 5: 61 / 61