Submission #429775

#	Time	Username	Problem	Language	Result	Execution time	Memory
429775		kwongweng	Ancient Books (IOI17_books)	C++17	0 / 100	1 ms	204 KiB

books

#include "books.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
#define FOR(i, a, b) for(int i = a; i < b; i++)
#define pb push_back

long long minimum_walk(vi p, int s) {
	long long ans = 0;
	int maxi = 0;
	int n = p.size();
	vi used(n);
	FOR(i, 0, n){
		if (used[i]) continue;
		maxi = max(maxi, i);
		int cur = i; used[i] = 1;
		while (p[cur] != i){
			ans += abs(p[cur] - cur);
			cur = p[cur];
			used[cur] = 1;
		}
		ans += abs(i-cur);
	}
	ans += maxi*2;
	return ans;
}

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