Submission #966886

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
966886	2024-04-20 14:29:51	penguin133	Swapping Cities (APIO20_swap)	C++17	100 / 100	241 ms	46272 KiB

swap

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#include <bits/stdc++.h>
using namespace std;
#include "swap.h"
//#define int long long
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
 
vector <int> waiting[200005];
int par[200005], val[200005], deg[200005], good[200005], up[20][200005], dep[200005];
int cnt = 1;
pi adj[200005];
int getr(int x){return par[x] == x ? x : par[x] = getr(par[x]);}
void merge(int a, int b, int c){
  a = getr(a); b = getr(b);
  if(a == b)return;
  par[a] = par[b] = up[0][a] = up[0][b] = par[cnt];
  val[cnt] = c;
  adj[cnt] = {a, b};
  //good[cnt] = 1;
  cnt++;
}
 
int par2[200005];
int g2(int x){return par2[x] == x ? x : par2[x] = g2(par2[x]);}
 
 
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• Subtask 1: 6 / 6
• Subtask 2: 7 / 7
• Subtask 3: 17 / 17
• Subtask 4: 20 / 20
• Subtask 5: 23 / 23
• Subtask 6: 27 / 27