Submission #1042948

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1042948	2024-08-03 15:20:59	ReLice	Roller Coaster Railroad (IOI16_railroad)	C++17	100 / 100	786 ms	119216 KiB

railroad

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#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define vll vector<ll>
#define fr first
#define bc back()
#define sc second
const ll inf=2e9;
const ll N=4e5+7;
vector<vector<int>> g(N);
int p[N],siz[N];
int anc(ll a){
  return (a==p[a] ? a : p[a]=anc(p[a]));
}
bool uni(ll a,ll b){
  a=anc(a),b=anc(b);
  if(a==b)return false;
  if(siz[a]>siz[b])swap(a,b);
  siz[b]+=siz[a];
  p[a]=b;
  return true;
}
long long plan_roller_coaster(vector<int> s, vector<int> t) {
    ll i;
    ll n=s.size();
    
    //compress;
    set<int> st;
 
 
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• Subtask 1: 11 / 11
• Subtask 2: 23 / 23
• Subtask 3: 30 / 30
• Subtask 4: 36 / 36