제출 #321153

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
321153	2020-11-11 08:21:21	socho	Pilot (NOI19_pilot)	C++14	100 / 100	700 ms	76584 KiB

pilot

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#include "bits/stdc++.h"
using namespace std;
long long ans = 0;
const long long MXN = 1000005;
long long par[MXN], gs[MXN];
bool used[MXN];
void init() {
  for (long long i=0; i<MXN; i++) par[i] = i;
}
long long parent(long long n) {
  if (n == par[n]) return n;
  return par[n] = parent(par[n]);
}
bool arc(long long a, long long b) {
  return parent(a) == parent(b);
}
long long pa(long long n) {
  return n * (n+1) / 2;
}
void connect(long long a, long long b) {
  if (arc(a, b)) return;
  long long ax = parent(a);
  long long bx = parent(b);
 
 
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