From: Christophe Raffalli <christophe@raffalli.eu>
To: caml-list@inria.fr
Subject: [Caml-list] O(n ln k) sorting for ocaml on github and a challenge
Date: Fri, 8 Oct 2021 18:05:33 -1000 [thread overview]
Message-ID: <20211009040533.chu7kqqk27r5wcok@oulala> (raw)
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Hello,
I just pushed on https://github.com/craff/block_sort.git an old piece of code: a
stable sorting algorithm which is in O(n ln k) where n is the size of the list
and k the number of changes of direction. It is often much faster than
List.sort, on my tests, never more than 10% slower. The tests are available on
github.
If people are interested I could provide a version for arrays.
A challenge would be to provide a O(n ln k) sorting on list that is always
faster than List.sort. Any ideas ?
Cheers,
Christophe
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next reply other threads:[~2021-10-09 4:05 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-09 4:05 Christophe Raffalli [this message]
2021-10-09 8:58 ` Mario Pereira
2021-10-09 19:59 ` Christophe Raffalli
2021-10-11 11:46 ` Niols
2021-10-11 21:27 ` Mario Pereira
2021-10-22 4:42 ` Kazuhiko Sakaguchi
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