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From: uzibalqa <uzibalqa@proton.me>
To: Emanuel Berg <incal@dataswamp.org>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Too many permutations computed
Date: Thu, 03 Aug 2023 15:52:18 +0000	[thread overview]
Message-ID: <A-X9qLuC1df5WXeaYQNcjNiEJC4H5Tnmkq-R-nwX-DHLCAX0lxj3leI3dC3lhbIsZNANSFwo0kHGt4Qqm3YbMUc13xv3bJH6GGG24cxQLHs=@proton.me> (raw)
In-Reply-To: <87sf91eopn.fsf@dataswamp.org>

------- Original Message -------
On Wednesday, August 2nd, 2023 at 10:13 PM, Emanuel Berg <incal@dataswamp.org> wrote:


> uzibalqa wrote:
> 
> > (while (< j h) [...]
> > (setq j (1+ j)))
> > [...]
> > for i := 0; i < k-1; i += 1 do [...]

Do you understand what the i += 1 does ?  It is the same as i++,
am I right ?

The difference lies in the timing of when the increment takes place 
(immediately in the case of i += 1, and after the value is used in 
the case of i++).   Do you think the distinction mentioned makes a 
difference for the algorithm ?

> 
> You can replace that `while' with a for loop using` cl-loop'
> and for, to make it a closer match to the pseudo-code.
> 
> This: (setq j (1+ j)) can be replaced by `cl-incf' as in
> (cl-incf j) - but better yet is to get away with that and use
> a for loop to iterate instead.
> 
> Again you can check out these two
> 
> https://dataswamp.org/~incal/emacs-init/perm.el
> https://www.emacswiki.org/emacs/StringPermutations
> 
> but after spending so much time on your own solution I get it
> you want to complete it ...
> 
> --
> underground experts united
> https://dataswamp.org/~incal



  parent reply	other threads:[~2023-08-03 15:52 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-01 18:45 Too many permutations computed uzibalqa
2023-08-02 10:13 ` Emanuel Berg
2023-08-03 15:42   ` uzibalqa
2023-08-03 16:49     ` uzibalqa
2023-08-03 22:13       ` Emanuel Berg
2023-08-04 18:44         ` Heime
2023-08-03 15:52   ` uzibalqa [this message]
2023-08-03 16:08     ` Emanuel Berg
2023-08-04 18:39       ` Heime
2023-08-03 18:23 ` tpeplt
2023-08-03 23:25   ` Emanuel Berg
2023-08-04 21:45     ` tpeplt
2023-08-06 13:32       ` Emanuel Berg

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