Submission #223701

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
223701	2020-04-16 06:21:19	rama_pang	Split the Attractions (IOI19_split)	C++14	100 / 100	150 ms	18024 KiB

split

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#include "split.h"
#include <bits/stdc++.h>
using namespace std;
class DisjointSet {
 private:
  vector<int> p, sz;
 public:
  DisjointSet(int n) {
    p.assign(n, 0);
    iota(begin(p), end(p), 0);
    sz.assign(n, 1);
  }
  int Find(int x) {
    return p[x] == x ? x : p[x] = Find(p[x]);
  }
  bool Unite(int x, int y) {
    x = Find(x), y = Find(y);
    if (x == y) return false;
    if (sz[x] > sz[y]) swap(x, y);
    p[x] = y;
    sz[y] += sz[x];
    return true;
  }
  int Size(int x) {
    return sz[Find(x)];
 
 
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• Subtask 1: 7 / 7
• Subtask 2: 11 / 11
• Subtask 3: 22 / 22
• Subtask 4: 24 / 24
• Subtask 5: 36 / 36