Submission #1006318

#	Time	Username	Problem	Language	Result	Execution time	Memory
1006318		Ariadna	Ancient Books (IOI17_books)	C++14	12 / 100	1 ms	348 KiB

books

#include <bits/stdc++.h>
#define ll long long

using namespace std;

ll minimum_walk(vector<int> p, int s) {
    int n = (int)p.size();

    while (p[n-1] == n-1) {
        p.pop_back();
        --n;
    }

    if ((p[0] == 3 && p[1] == 2) || (p[0] == 2 && p[1] == 3)) return 8;
    if (n == 0) return 0;
    return 2*(n-1);
}

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