Submission #1076044

#	Time	Username	Problem	Language	Result	Execution time	Memory
1076044		mdn2002	Ancient Books (IOI17_books)	C++17	0 / 100	1 ms	348 KiB

books

#include "books.h"
#include<bits/stdc++.h>
using namespace std;
long long minimum_walk(std::vector<int> p, int s) {
    assert(s == 0);

    long long ans = 0, n = p.size(), last = 0;
    for (int i = 0; i < n; i ++) {
        if (p[i] != i) {
            ans += abs(last - i);
            last = i;
            int carry = p[i], j = i;
            while (p[i] != i) {
                ans += abs(carry - p[carry]);
                swap(p[carry], carry);
            }
        }
    }
    ans += last;
    return ans;
}

Compilation message (stderr)

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:12:31: warning: unused variable 'j' [-Wunused-variable]
   12 |             int carry = p[i], j = i;
      |                               ^

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