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From: Andrew <newsgroups.fr@gmail.com>
Cc: Radu Grigore <radugrigore@gmail.com>, caml-list@inria.fr
Subject: Re: [Caml-list] Priority queues, reloaded
Date: Sat, 02 Jul 2011 21:05:27 +0200	[thread overview]
Message-ID: <4E0F6BF7.5010605@gmail.com> (raw)
In-Reply-To: <30775f1d-9cce-4c46-b7f0-62cdcf9e52cf@glegroupsg2000goo.googlegroups.com>

Radu Grigore wrote:
> On Thursday, June 30, 2011 7:14:56 PM UTC+1, Jean-Christophe Filliâtre wrote:
>> Le 30/06/2011 19:26, Gabriel Scherer a �crit :
>>> Okasaki (eg. in its book "Purely functional data structure", but can
>>> probably be found in papers available on the net) has a "leftist heap"
>>> data structure [...]
>
> Okasaki probably prefers maxiphobic heaps.
>    http://www.eecs.usma.edu/webs/people/okasaki/sigcse05.pdf
>
>> I confirm that leftist heap is probably the best possible choice.
>
> How is that better than using Set?
>
> The only reason I see for implementing your own heap is to save space: Binomial heaps have much better constants. (Smaller space&  cache will likely lead to less time.)
>

Sets are not heaps ; they can't have multiple copies of the same element.


  reply	other threads:[~2011-07-02 19:05 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <fa.V8myB/rA6OKILQg+GW40f8c1BGo@ifi.uio.no>
2011-07-02 12:24 ` Radu Grigore
2011-07-02 19:05   ` Andrew [this message]
2011-07-02 22:42   ` Radu Grigore
2011-07-10 17:55     ` Jon Harrop
2011-07-09 18:45 james woodyatt
     [not found] ` <14B0DF03-EF83-4568-AB34-6B51BCE4B574@recoil.org>
2011-07-09 18:56   ` james woodyatt
     [not found] <848371343.3424870.1309454037170.JavaMail.root@zmbs3.inria.fr>
2011-06-30 18:03 ` Daniel de Rauglaudre
     [not found] <sfid-j-20110630-131704-+2.76-1@multi.osbf.lua>
2011-06-30 17:13 ` Andrew
2011-06-30 17:26   ` Gabriel Scherer
2011-06-30 18:14     ` Jean-Christophe Filliâtre
2011-06-30 18:36     ` Jean-Christophe Filliâtre
2011-07-09  9:02       ` Jon Harrop
2011-07-09 19:22         ` Jean-Christophe Filliâtre
2011-07-10 18:04           ` Jon Harrop
2011-06-30 19:13     ` Andrew
2011-06-30 22:17     ` Wojciech Meyer
2011-07-02  1:49   ` Norman Ramsey
2011-07-09  9:05   ` Jon Harrop

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