Submission #634677

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
634677	2022-08-24 17:04:27	mrkhan2000	Monthly railway pass (LMIO18_menesinis_bilietas)	C++17	100 / 100	542 ms	65284 KiB

menesinis_bilietas

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#include <bits/stdc++.h>
#define ll long long
#define MOD 1000000007
using namespace std;
class union_find {
private:
  int N;
  int components;
  vector<int> sz, pa;
public:
  union_find(int N) : N(N), components(N), sz(vector<int>(N,1)), pa(vector<int>(N)) {
    iota(pa.begin(), pa.end(), 0);
  }
  void unite(int u, int v) {
    if(u >= N || v >= N) return;
    u = find(u);
    v = find(v);
    if(u == v) return;
    if(sz[u] < sz[v]) swap(u, v);
    sz[u] += sz[v];
    pa[v] = u;
    --components;
  }
  int find(int u) {
    if(u >= N) return -1;
    while(pa[u]^u) u = pa[u];
    return u;
  }
  int _size(int u) {
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 6 / 6
• Subtask 3: 30 / 30
• Subtask 4: 35 / 35
• Subtask 5: 19 / 19