comp.lang.ada
 help / color / mirror / Atom feed
From: NKSW39B@prodigy.com (Matthew Givens)
Subject: Re: Anyone help develop an algorythm?
Date: 1997/04/23
Date: 1997-04-23T00:00:00+00:00	[thread overview]
Message-ID: <5jjthv$2an0@newssvr01-int.news.prodigy.com> (raw)
In-Reply-To: dewar.861594885@merv


dewar@merv.cs.nyu.edu (Robert Dewar) wrote:
>
>Matthew says
>
>
>Ugh! bubble sort sounds, even modified as you say, sounds like a 
horrible
>choice here. Have a look at the g-hesora or g-hesorg files in the GNAT
>distribution for efficient sorts (this is a modified heapsort, using 
the
>modification i developed in my thesis work 30 years ago, which halves
>the number of comaprisons). It is setup with a procedural interface
>that should be easy to adapt to your application.
>

Guys, please.  Of course I know that the Bubble is the worst sort in 
existence for a large array, but it was the easiest to implement with the 
array divided up into non-contiguous chunks.  It works, but performance 
is unacceptable.  Basically I did it to get something working now, with 
(hopefully) a better method coming later.

Now, I know a bit about heap, and it seems to require contiguous storage, 
t do it's thing.  As do most sorting algorythms.  I need one that can 
accomodate the difference.

-
If at first you don't succeed, destroy all evidence that you ever tried. 
<< Iceman >>





  reply	other threads:[~1997-04-23  0:00 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1997-04-20  0:00 Anyone help develop an algorythm? Matthew Givens
1997-04-20  0:00 ` Tucker Taft
1997-04-20  0:00 ` Tom Moran
1997-04-22  0:00   ` Michael F Brenner
1997-04-20  0:00 ` Robert A Duff
1997-04-22  0:00   ` Steve Doiel
1997-04-20  0:00 ` Robert Dewar
1997-04-23  0:00   ` Matthew Givens [this message]
1997-04-23  0:00     ` Robert Dewar
1997-04-20  0:00 ` Joel VanLaven
1997-04-22  0:00   ` Robert Dewar
     [not found] ` <e8yijs.fg1.0.-s@inmet.camb.inmet.com>
1997-04-23  0:00   ` Matthew Givens
1997-04-23  0:00     ` Robert Dewar
1997-04-28  0:00       ` Matthew Givens
1997-04-23  0:00     ` Tucker Taft
     [not found] ` <335af137.54d7@bix.com>
1997-04-28  0:00   ` Matthew Givens
1997-04-28  0:00     ` Robert Dewar
1997-04-29  0:00       ` Matthew Givens
  -- strict thread matches above, loose matches on Subject: below --
1997-04-24  0:00 Marin David Condic, 561.796.8997, M/S 731-93
1997-04-25  0:00 ` Michael F Brenner
1997-04-28  0:00   ` Matthew Givens
1997-04-28  0:00 ` Matthew Givens
replies disabled

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox