제출 #389042

#제출 시각UTC-0아이디문제언어결과실행 시간메모리
3890422021-04-13 14:44:22KeshiRoller Coaster Railroad (IOI16_railroad)C++17
100 / 100
276 ms27656 KiB
//In the name of God
#include <bits/stdc++.h>
#include "railroad.h"
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
const ll maxn = 5e5 + 100;
const ll mod = 1e9 + 7;
const ll inf = 1e9;
#define fast_io ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define file_io freopen("input.txt", "r+", stdin);freopen("output.txt", "w+", stdout);
#define pb push_back
#define Mp make_pair
#define F first
#define S second
#define Sz(x) ll((x).size())
#define all(x) (x).begin(), (x).end()
ll dsu[maxn], sz[maxn], ps[maxn];
ll par(ll v){
if(dsu[v] != v) dsu[v] = par(dsu[v]);
return dsu[v];
}
bool Union(ll v, ll u){
v = par(v);
 
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