제출 #1021365

#제출 시각UTC-0아이디문제언어결과실행 시간메모리
10213652024-07-12 17:19:00mansurRoller Coaster Railroad (IOI16_railroad)C++17
0 / 100
116 ms10800 KiB
#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;
#define rall(s) s.rbegin(), s.rend()
#define all(s) s.begin(), s.end()
#define sz(s) (int)s.size()
#define s second
#define f first
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
const int N = 1e6, inf = 1e9 + 5;
int pr[N], sz[N];
int get(int x) {
if (pr[x] == x) return x;
return pr[x] = get(pr[x]);
}
void unite(int a, int b) {
a = get(a);
b = get(b);
if (a == b) return;
if (sz[a] > sz[b]) swap(a, b);
pr[a] = b, sz[b] += sz[a];
 
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