Submission #572395

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
572395	2022-06-04 10:33:33	MODDI	Pilot (NOI19_pilot)	C++14	40 / 100	181 ms	36676 KiB

pilot

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#include <bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define vi vector<int>
#define vl vector<ll>
#define mp make_pair
#define pb push_back
using namespace std;
const int maxn = 1e6 + 5;
int n, q;
int parent[maxn];
int sz[maxn];
bool on[maxn];
int find(int v){
  if(v == parent[v])
    return v;
  return parent[v] = find(parent[v]);
}
ll rez = 0;
void mrg(int a, int b){
  a = find(a);
  b = find(b);
  if(a != b){
    rez -= (sz[a] * (sz[a] + 1) * 1LL) / 2;
    rez -= (sz[b] * (sz[b] + 1)*1LL) / 2;
    sz[a] += sz[b];
    rez += (sz[a] * (sz[a] + 1)*1LL) / 2;
    parent[b] = a;
  }
 
 
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