Submission #667205

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
667205	2022-11-30 17:50:31	atigun	Connecting Supertrees (IOI20_supertrees)	C++17	40 / 100	204 ms	22152 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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• Subtask 2: 10 / 10
• Subtask 3: 19 / 19
• Subtask 4: 0 / 35
• Subtask 5: 0 / 21
• Subtask 6: 0 / 4