제출 #667086

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
667086	2022-11-30 11:16:40	atigun	슈퍼트리 잇기 (IOI20_supertrees)	C++17	21 / 100	204 ms	22164 KiB

supertrees

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#include<bits/stdc++.h>
#include"supertrees.h"
using namespace std;
typedef long long ll;
struct dsu{
  vector<int> parent, size;
  int N;
  void assign(int dsusize){
    N = dsusize;
    parent.assign(N, 0);
    iota(parent.begin(), parent.end(), 0);
    size.assign(N, 1);
  }
  int find(int v){
    return parent[v] = (parent[v] == v ? v : find(parent[v]));
  }
  void merge(int v, int u){
    if(find(v) == find(u))
      return;
    if(size[find(v)] < size[find(u)])
      swap(u, v);
    size[find(v)]+= size[find(u)];
    parent[find(u)] = parent[find(v)];
  }
  bool is_same(int v, int u){
    return (find(v) == find(u));
  }
};
 
 
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