Submission #1050578

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1050578	2024-08-09 11:28:45	Alihan_8	Roller Coaster Railroad (IOI16_railroad)	C++17	100 / 100	169 ms	27700 KiB

railroad

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#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define all(x) x.begin(), x.end()
#define ln '\n'
#define ar array
using i64 = long long;
struct Dsu{
  vector <int> fa;
  
  Dsu(int n){
    fa.resize(n);
    iota(all(fa), 0);
  }
  
  int get(int x){
    return x ^ fa[x] ? fa[x] = get(fa[x]) : x;
  }
  
  bool merge(int u, int v){
    u = get(u), v = get(v);
    
    if ( u == v ) return false;
    
 
 
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• Subtask 1: 11 / 11
• Subtask 2: 23 / 23
• Subtask 3: 30 / 30
• Subtask 4: 36 / 36