제출 #295735

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
295735	2020-09-09 21:00:29	shayan_p	고대 책들 (IOI17_books)	C++17	50 / 100	680 ms	86500 KiB

books

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// Oh damn! Suddenly you're free to fly...
 
#include<bits/stdc++.h>
#include "books.h"
 
#define F first
#define S second
#define PB push_back
#define sz(s) int((s).size())
#define bit(n,k) (((n)>>(k))&1)
 
using namespace std;
 
typedef long long ll;
typedef pair<int,int> pii;
 
const int maxn = 1e6 + 10, mod = 1e9 + 7, inf = 1e9 + 10;
 
int pr[maxn], L[maxn], R[maxn];
int fnd(int u){
    return pr[u] < 0 ? u : pr[u] = fnd(pr[u]);
}
void mrg(int a, int b){
    if( (a = fnd(a)) == (b = fnd(b)) )
  return;
    if(pr[a] > pr[b])
  swap(a, b);
    L[a] = min(L[a], L[b]);
    R[a] = max(R[a], R[b]);
 
 
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• Subtask 1: 12 / 12
• Subtask 2: 10 / 10
• Subtask 3: 28 / 28
• Subtask 4: 0 / 20
• Subtask 5: 0 / 30