Submission #1138407

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1138407	2025-01-22 11:25:02	raspy	Roller Coaster Railroad (IOI16_railroad)	C++20	100 / 100	127 ms	34440 KiB

railroad

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#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
struct dsu
{
  vector<int> par;
  int cnt;
  dsu (int sz)
  {
    cnt = sz;
    par = vector<int>(sz);
    for (int i = 0; i < sz; i++)
      par[i]=i;
  }
  int mnz(int x)
  {
    return par[x] = (x == par[x] ? x : mnz(par[x]));
  }
  void zd(int x, int y)
  {
    x=mnz(x);
    y=mnz(y);
    if (x==y)return;
    cnt--;
    par[y]=x;
  }
};
 
 
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Compilation message (stderr)

railroad.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
railroad_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

• Subtask 1: 11 / 11
• Subtask 2: 23 / 23
• Subtask 3: 30 / 30
• Subtask 4: 36 / 36