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From: vallor <vallor@cultnix.org>
Newsgroups: comp.os.linux.advocacy
Subject: Re: Simple math/programming challenge for the "REAL programmer" Feeb
Date: Sun, 10 Mar 2024 19:56:45 -0000 (UTC)
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On Sun, 10 Mar 2024 15:48:47 -0400, DFS <nospam@dfs.com> wrote in
<usl2qu$34lr8$3@dont-email.me>:

> On 3/10/2024 11:52 AM, Tyrone wrote:
>> On Mar 10, 2024 at 10:46:27 AM EDT, "DFS" <nospam@dfs.com> wrote:
> 
> 
>> Other than 1, your list above is missing at least 4 numbers: 4879, 5292, 38962
>> and 627615. The reason is you are not handling zeros correctly.
> 
> Depends on who you ask.
> 
> https://oeis.org/A053816
> https://oeis.org/A006886
> 
> 
>> But seriously, these numbers are constants. There is no need to waste my time
>> and computer time calculating them. 
> 
> You just wasted your time and computer time responding to this post.
> 
> 
> 
>> Put them in an array and do a search for
>> whatever number you want to check. "Is 123456 a Kaprekar number?" Not in the
>> array, so no it is not.
>> 
>> Done.
> 
> There are infinite K numbers.
> 
> Better to use a few lines of code to calculate/check them on demand. And 
> then you can generalize the K code for powers > 2 (not shown here, but 
> easy to do).
> 
> def isKaprekar(val,exp):
> 	s,n = str(val**exp), len(str(val))
> 	if len(s) % exp != 0: n-=1
> 	p1,p2 = int(s[0:n]), int(s[n:])
> 	if p1 + p2 == val:
> 		return True
> 	else:
> 		return False
> 
> 
> 
>   > Why waste time re-inventing the wheel?
> 
> What if I want to call out that talentless "REAL programmer / 
> mathematician / extraordinaire" hack Feeb Russell, so I can watch him 
> squirm and flub a tiny math program?

That would be an off-charter post, like this one.

-- 
-v