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Re: [External] : Use of an associated list with completing-read
From: |
Emanuel Berg |
Subject: |
Re: [External] : Use of an associated list with completing-read |
Date: |
Sat, 20 Apr 2024 03:59:20 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
Stefan Monnier via Users list for the GNU Emacs text editor wrote:
>> An even more common cliche for doing the same thing is to
>> do #1, then (2) cons instead of append, and (3) when
>> finished adding list elements, do an `nreverse' of the list
>> you created. That too is a destructive operation.
>
> That's the usual solution, with the desired linear (i.e.
> optimal) complexity, indeed.
AKA O(N) which is linear, or proportional to the problem
size N.
Even better is constant complexity, O(1), where it does not
matter how big the problem is, since that, N, isn't even in
the equation, as we saw.
Probably not possible in a lot of cases, including this one.
--
underground experts united
https://dataswamp.org/~incal
- RE: [External] : Use of an associated list with completing-read, (continued)
- RE: [External] : Use of an associated list with completing-read, Drew Adams, 2024/04/18
- RE: [External] : Use of an associated list with completing-read, Heime, 2024/04/18
- RE: [External] : Use of an associated list with completing-read, Heime, 2024/04/18
- RE: [External] : Use of an associated list with completing-read, Drew Adams, 2024/04/19
- RE: [External] : Use of an associated list with completing-read, Heime, 2024/04/19
- Re: [External] : Use of an associated list with completing-read, Stefan Monnier, 2024/04/19
- RE: [External] : Use of an associated list with completing-read, Drew Adams, 2024/04/19
- Re: [External] : Use of an associated list with completing-read, Stefan Monnier, 2024/04/19
- Re: [External] : Use of an associated list with completing-read, Heime, 2024/04/20
- Re: [External] : Use of an associated list with completing-read, Heime, 2024/04/20
- Re: [External] : Use of an associated list with completing-read,
Emanuel Berg <=
Re: Use of an associated list with completing-read, Jean Louis, 2024/04/23