Submission #738518

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
738518	2023-05-09 01:53:40	bobthebuilder	Stations (IOI20_stations)	C++17	100 / 100	1043 ms	10236 KiB

stations

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#include "stations.h"
#include<bits/stdc++.h>
using namespace std;
#define sz(x) (int)x.size()
#define REP(i,n) for(int i=0;i<n;i++)
#define REP1(i,n) for(int i=1;i<=n;i++)
#define pb push_back
#define lowb(x) (x&(-x))
#define ALL(_x) _x.begin(),_x.end()
#define pii pair<int,int>
#define f first
#define s second
#define SORT_UNIQUE(x) sort(ALL(x)),x.erase(unique(ALL(x)),x.end())
#define ll long long
#define MNTO(x,y) x=min(x,y)
#define MXTO(x,y) x=max(x,y)
const int maxn=2e5+5;
const int INF=0x3f3f3f3f;
int dep[maxn];
vector<int> g[maxn];
int in[maxn],out[maxn];
int cur=0;
void dfs(int u,int p){
  in[u]=(cur++);
  for(int x:g[u]){
    if(x==p) continue;
    dep[x]=dep[u]+1;
    dfs(x,u);
  }
  out[u]=cur-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