From: Oleg <oleg_inconnu@myrealbox.com>
To: Issac Trotts <ijtrotts@ucdavis.edu>,
OCaml Mailing List <caml-list@inria.fr>
Subject: Re: [Caml-list] function
Date: Thu, 5 Dec 2002 18:00:55 -0500 [thread overview]
Message-ID: <200212051800.55361.oleg_inconnu@myrealbox.com> (raw)
In-Reply-To: <20021205202448.GB524@boson.ucdavis.edu>
On Thursday 05 December 2002 03:24 pm, Issac Trotts wrote:
> List.concat (List.map to_list2 strs);;
^^^^^^^^^
> > 2) What is the complexity of your function f ?
>
> The new ones have linear time complexity w.r.t. the number of
> characters. The old one has quadratic time complexity.
Issac
I haven't analyzed your whole functions, but List.flatten'ing alone is
O(S*L^2), so while it may be linear WRT the number of characters in one
string, it's not necessarily linear WRT the total number of characters. See
my version of f for O(L*S) time.
Cheers
Oleg
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next prev parent reply other threads:[~2002-12-05 23:01 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-02 15:55 altavillasalvatore
2002-12-02 16:29 ` sebastien FURIC
2002-12-02 17:35 ` Oleg
2002-12-03 23:22 ` Issac Trotts
2002-12-05 10:00 ` Pierre Weis
2002-12-05 20:24 ` Issac Trotts
2002-12-05 23:00 ` Oleg [this message]
2002-12-06 21:31 ` Issac Trotts
2002-12-07 10:28 ` Xavier Leroy
2002-12-07 17:31 ` Oleg
2002-12-05 20:46 ` Oleg
2002-12-05 21:06 ` Pal-Kristian Engstad
2002-12-06 7:38 Jeremy Fincher
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