From: Seth Fogarty <sfogarty@gmail.com>
To: skaller@users.sourceforge.net
Cc: caml-list@pauillac.inria.fr
Subject: Re: [Caml-list] Re: Set and Map question
Date: Sun, 19 Sep 2004 23:18:34 -0500 [thread overview]
Message-ID: <c7ee6112040919211867048703@mail.gmail.com> (raw)
In-Reply-To: <1095652570.2580.298.camel@pelican.wigram>
Yes, sorry, sorted. I know it is possible, I was wondering if it was
implemented.
On 20 Sep 2004 13:56:10 +1000, skaller <skaller@users.sourceforge.net> wrote:
> On Mon, 2004-09-20 at 13:14, Seth Fogarty wrote:
>
> > What I MEANT to ask is: Is there a O(n) method of set/map construction
> > from a list, as opposed to the O(n log n) fold method.
>
> It seems to me that in general that is impossible,
> since random tree insertions are at least O(log n)
> in the tree size (proportional to depth).
>
> Perhaps you meant, assuming the list is sorted?
> In that case, in theory you could precalculate
> the shape of the tree just from the size, and then
> fill in the elements in O(n).
>
> --
> John Skaller, mailto:skaller@users.sf.net
> voice: 061-2-9660-0850,
> snail: PO BOX 401 Glebe NSW 2037 Australia
> Checkout the Felix programming language http://felix.sf.net
>
>
--
Seth Fogarty sfogarty@gmail.com
Neep-neep at large AIM: Sorrath
"I know there are people in this world who do not love their fellow
human beings - and I hate people like that" --Tom Lehrer.
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next prev parent reply other threads:[~2004-09-20 4:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-20 2:37 [Caml-list] " Seth Fogarty
2004-09-20 3:14 ` [Caml-list] " Seth Fogarty
2004-09-20 3:56 ` skaller
2004-09-20 4:18 ` Seth Fogarty [this message]
2004-09-20 6:43 ` skaller
2004-09-20 8:32 ` Diego Olivier Fernandez Pons
2004-09-20 4:02 ` Brian Hurt
2004-09-20 8:17 ` Richard Jones
2004-09-20 12:41 ` Igor Pechtchanski
2004-09-20 12:54 ` Jean-Christophe Filliatre
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