Submission #395244

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
395244	2021-04-28 03:52:21	irmuun	Swapping Cities (APIO20_swap)	C++17	37 / 100	2093 ms	8416 KiB

swap

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#include "swap.h"
#include<bits/stdc++.h>
using namespace std;
int a,b,i,n,m,link[200000],edge[200000],sz[200000],x,y,ans[200000],edgeNum[200000],h[200000],d,e;
pair<int, pair<int,int> >p[200000];
int find(int x){
  if(link[x]==x){
    return x;
  }
  return link[x]=find(link[x]);
}
bool same(int a,int b){
  if(find(a)==find(b)){
    return true;
  }
  else{
    return false;
  }
}
void unite(int a,int b){
  a=find(a);
  b=find(b);
  if(sz[a]<sz[b]){
    swap(a,b);
  }
  if(ans[b]==1){
    ans[a]=1;
  }
  link[b]=a;
  sz[a]+=sz[b];
 
 
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