Submission #566320

#	Time	Username	Problem	Language	Result	Execution time	Memory
566320		Temmie	Ancient Books (IOI17_books)	C++17	0 / 100	1 ms	212 KiB

books

//#include "public_c/public/cpp/books.h"
#include "books.h"

#include <bits/stdc++.h>

long long minimum_walk(std::vector <int> p, int s) {
	int n = p.size();
	std::vector <bool> vis(n, false);
	int big = 0;
	long long ans = 0;
	for (int i = 0; i < n; i++) {
		if (vis[i]) {
			continue;
		}
		vis[i] = true;
		big = i;
		int u = i;
		do {
			ans += abs(p[u] - u);
			u = p[u];
			vis[u] = true;
		} while (u != i);
	}
	ans += big * 2;
	return ans;
}

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