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From: oliver@first.in-berlin.de (Oliver Bandel)
To: caml-list@inria.fr
Subject: [oliver: Re: [Caml-list] Should be INSIDE STANDARD-LIB: Hashtbl.keys]
Date: Fri, 23 Apr 2004 22:10:06 +0200	[thread overview]
Message-ID: <20040423201006.GF271@first.in-berlin.de> (raw)

----- Forwarded message from oliver -----

To: John Goerzen <jgoerzen@complete.org>
Subject: Re: [Caml-list] Should be INSIDE STANDARD-LIB: Hashtbl.keys

On Fri, Apr 23, 2004 at 01:29:06PM -0500, John Goerzen wrote:
> On Fri, Apr 23, 2004 at 02:51:41PM +0200, Xavier Leroy wrote:
> > With your specification (no repetitions in the list), that function
> > would run in quadratic time, which is a sure sign that lists aren't
> > the right data structure here.  (More generally speaking, "lists
> > without repetitions" is almost always the wrong data structure.)
> 
> But perhaps you don't really care how fast it runs, since your entire
> program consumes about 1/10 of a CPU second anyway?
> 

Depends on number of keys...

n ^ 2  is less when n is low,
n = 10 and n = 10000 seems not to matter much...
but 10^2 and 10000^2 are a differrence that matters a lot!

Ciao,
   Oliver

----- End forwarded message -----

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             reply	other threads:[~2004-04-23 20:20 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-04-23 20:10 Oliver Bandel [this message]
  -- strict thread matches above, loose matches on Subject: below --
2004-04-23 20:10 Oliver Bandel
2004-04-24  7:30 ` Martin Jambon
2004-04-23 20:09 Oliver Bandel
2004-04-23 20:09 Oliver Bandel
2004-04-23 20:09 Oliver Bandel
2004-04-24  3:00 ` skaller
2004-04-24  4:46   ` Jon Harrop
2004-04-24 10:39     ` Oliver Bandel
2004-04-25 18:54     ` Marcin 'Qrczak' Kowalczyk
2004-04-25 20:06       ` Jon Harrop
2004-04-26 10:14         ` Richard Jones
2004-04-26 17:13           ` Jon Harrop
2004-04-24  6:42   ` Basile STARYNKEVITCH
2004-04-24 19:12     ` skaller
2004-04-24  8:56   ` Oliver Bandel

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