Submission #217531

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
217531	2020-03-30 07:26:53	extraterrestrial	Constellation 3 (JOI20_constellation3)	C++14	100 / 100	688 ms	50424 KiB

constellation3

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#include <bits/stdc++.h>
typedef long long ll;
typedef long double ld;
using namespace std;
#define F first
#define S second
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define SZ(x) (int)(x).size()
#define int ll
const int N = 2e5 + 10;
int p[N], l[N], r[N], sz[N];
void init(int n) {
  for (int i = 1; i <= n; i++) {
    p[i] = l[i] = r[i] = i;
    sz[i] = 1;
  }
}
int find(int v) {
  return p[v] == v ? v : p[v] = find(p[v]);
}
void merge(int a, int b) {
  a = find(a), b = find(b);
  if (a == b) {
    return;
  }
 
 
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• Subtask 1: 14 / 14
• Subtask 2: 21 / 21
• Subtask 3: 65 / 65