제출 #738865

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
738865	2023-05-09 14:46:00	josanneo22	자매 도시 (APIO20_swap)	C++17	50 / 100	2061 ms	18188 KiB

swap

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#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
vector<int> par,sz,swappable,deg,has;
int total_groups;
void init(int n){
  par.resize(n); sz.resize(n); swappable.resize(n); deg.resize(n);has.resize(n);
  for(int i=0;i<n;i++){
    par[i]=i;
    sz[i]=1;
        swappable[i]=0;
        deg[i]=0;
        has[i]=0;
  }
}
int find(int x){
  if(par[x]==x) return x;
  else return par[x]=find(par[x]);
}
void sw(int x,int y){ 
    swappable[x]=(swappable[x]&swappable[y]);
    swappable[y]=(swappable[x]&swappable[y]);
    has[x]|=has[y];
    if(has[x]){
        swappable[y]=1;
 
 
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