Submission #114017

#	Time	Username	Problem	Language	Result	Execution time	Memory
114017		faustaadp	Ancient Books (IOI17_books)	C++17	0 / 100	2 ms	384 KiB

books

#include "books.h"
#include<bits/stdc++.h>
typedef long long ll;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
ll n,i,sud[1010101],p[1010101];
ll car(ll aa)
{
	if(p[aa]==aa)
		return aa;
	else
		return p[aa]=car(p[aa]);
}
void gab(ll aa,ll bb)
{
	p[car(aa)]=car(bb);
}
long long minimum_walk(std::vector<int> x, int s) 
{
	n=x.size();
	ll jaw=0;
	for(i=0;i<n;i++)p[i]=i;
	for(i=0;i<n;i++)jaw+=abs(i-x[i]);
	for(i=0;i<n;i++)
		gab(i,x[i]);
	ll tam=0;
	for(i=0;i<n;i++)
	{
		if(sud[car(i)]||car(i)==i)continue;
		else tam=i*2;
		sud[car(i)]=1;
	}
	return jaw+tam;
}

• Subtask 1: 0 / 12
• Subtask 2: 0 / 10
• Subtask 3: 0 / 28
• Subtask 4: 0 / 20
• Subtask 5: 0 / 30