From: Ben Bacarisse <ben.usenet@bsb.me.uk>
Subject: Re: project euler 26
Date: Mon, 04 Sep 2023 21:18:16 +0100 [thread overview]
Message-ID: <87a5u1u1yv.fsf@bsb.me.uk> (raw)
In-Reply-To: ud5amn$1jkrc$1@dont-email.me
"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> writes:
> On 2023-09-04 18:01, Ben Bacarisse wrote:
>> "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> writes:
>>
>>> On 2023-09-04 13:06, Niklas Holsti wrote:
>>>> On 2023-09-04 12:19, CSYH (QAQ) wrote:
>>>>> I am new to Ada, I know is there a good way to start this program?
>>>>> thanks
>>>>> https://projecteuler.net/problem=26
>>>> First invent/discover the method (algorithm) for solving the problem,
>>>> without thinking about the programming language.
>>>> I don't think any language has built-in features that would lead to a
>>>> direct solution, although some functional language with lazy evaluation
>>>> could come close, because such languages can manipulate unbounded
>>>> (potentially infinite) sequences of values. Such sequences can be handled
>>>> in Ada, too, but with more effort -- they are not "built in" to Ada.
>>>
>>> Infinite division does not require big numbers, which Ada 22 has, but I
>>> wound not use them anyway because the performance would be abysmal.
>>>
>>> BTW, Ada is perfect for numeric algorithms no need to resort to functional
>>> mess... (:-))
>> Perfect? That's a bold claim!
>
> Ada is a very improved descendant of Algol 60, which was designed to codify
> algorithms.
Yes, though I was respond to you narrower remark about being perfect for
numeric algorithms. Are you expending that to perfect for every kind of
algorithm?
>> Mind you, I don't think this problem is really a numerical one in that
>> sense. It needs some simple integer arithmetic but then every language
>> is perfect for that sort of arithmetic.
>
> That is still all about algorithms
Yes but, again, that's not what I was responding to.
> (rather than about for example building
> abstractions as in the case of OOP)
That's interesting. You don't consider using functions and procedures
(possibly higher-order ones) to be a way to build abstractions?
>> Using a functional mess (Haskell) a simple, native solution (i.e. using
>> no modules) is only 9 lines long.
>
> Apart from the fundamental inconsistency of functional paradigm: computing
> is about transition of states and nothing else; the imperative languages
> express solutions, i.e. an algorithm. Functional, and in general,
> declarative languages express puzzles.
Rather than try to unpick that paragraph I'll just say that they can,
none the less, give simple solutions to this sort of programming
problem.
--
Ben.
next prev parent reply other threads:[~2023-09-04 20:18 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-04 9:19 project euler 26 CSYH (QAQ)
2023-09-04 11:06 ` Niklas Holsti
2023-09-04 12:39 ` Dmitry A. Kazakov
2023-09-04 16:01 ` Ben Bacarisse
2023-09-04 19:20 ` Dmitry A. Kazakov
2023-09-04 20:18 ` Ben Bacarisse [this message]
2023-09-04 21:00 ` Dmitry A. Kazakov
2023-09-04 23:16 ` Ben Bacarisse
2023-09-05 7:23 ` Dmitry A. Kazakov
2023-09-05 15:18 ` Ben Bacarisse
2023-09-05 17:08 ` Dmitry A. Kazakov
2023-09-06 1:10 ` Ben Bacarisse
2023-09-06 7:06 ` Dmitry A. Kazakov
2023-09-06 15:16 ` Ben Bacarisse
2023-09-06 15:54 ` Dmitry A. Kazakov
2023-09-06 23:32 ` Ben Bacarisse
2023-09-07 9:02 ` Dmitry A. Kazakov
2023-09-08 1:32 ` Ben Bacarisse
2023-09-08 7:23 ` Dmitry A. Kazakov
2023-09-09 0:25 ` Ben Bacarisse
2023-09-09 9:32 ` Dmitry A. Kazakov
2023-09-10 1:20 ` Ben Bacarisse
2023-09-10 8:46 ` Dmitry A. Kazakov
2023-09-10 19:22 ` Ben Bacarisse
2023-09-11 6:53 ` Dmitry A. Kazakov
2023-09-11 16:13 ` Ben Bacarisse
2023-09-12 7:17 ` Dmitry A. Kazakov
2023-09-13 12:24 ` Ben Bacarisse
2023-09-14 6:33 ` Dmitry A. Kazakov
2023-09-14 14:30 ` Ben Bacarisse
2023-09-08 6:09 ` G.B.
2023-09-08 21:02 ` Ben Bacarisse
2023-09-09 8:13 ` G.B.
2023-09-09 21:04 ` Ben Bacarisse
2023-09-10 9:11 ` Dmitry A. Kazakov
2023-09-05 17:35 ` moi
2023-09-04 14:23 ` Dmitry A. Kazakov
2023-09-07 7:31 ` Francesc Rocher
2023-09-15 9:07 ` CSYH (QAQ)
2023-09-19 7:59 ` comp.lang.ada
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