Submission #152807

#	Time	Username	Problem	Language	Result	Execution time	Memory
152807		mieszko11b	Ancient Books (IOI17_books)	C++14	0 / 100	3 ms	376 KiB

books

#include "books.h"
#include <bits/stdc++.h>

using ll = long long;

using namespace std;

int n;
bool vis[1000007];

long long minimum_walk(std::vector<int> p, int s) {
	ll res = 0;
	n = p.size();
	
	int maxd = 0;
	for(int i = 0 ; i < n ; i++) {
		if(vis[i])
			continue;
			
		int w = i;
		int mind = 1e9;
		while(!vis[w]) {
			vis[w] = 1;
			mind = min(mind, abs(s - w));
			res += abs(p[w] - w);
			w = p[w];
		}
		
		maxd = max(maxd, mind);
	}
	res += maxd * 2;
	return res;
}

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