How much of Combinatorics does this kata need? Like I guess around 30%-40% is all about combinatorics to find the numbers which contain "5" in them.

I completely unpublished this kata, because there is no point in making it I think but still thanks for telling me

I decreased the number of test cases for both languages, even though the task was easily completable

Raku translation, please review and approve

I am sure this is duplicate, but here is raku translation anyways

Raku Translation, please review and approve

"only want the count" please thoroughly read first 3 lines of description

Raku Translation Please review and approve

so in 20 line, Testcases file, it's hard to understand that only defined 4 line function is there to check user's function? I see, I changed name of the function, I hope now it's easier for you and others to understand difference between:
is(digits( something ), Saqartvelo( something ) and is(digits( something ), ref_sol_12314313( something )

In solution setup (User side of the things) it's properly named "digits" and In testcase file where I check correctness of user's function, I named checking function Saqartvelo? why would it matter for user what inner function name is? If anything it's better to have uncommon name. Don't you remember when I translated Bubbler's kata into ruby? and twilight approved it? I also named function something like that,

"translation is deliberately made as difficult to maintain" please tell me how it makes maintenance difficult ? I fill fix it

"very least is that the translation is deliberately made as difficult to maintain " What are you talking about ? code is 4 lines? are you kidding me I tried to make code as clear as possible! and I am 100% being serious right now, nothing is wrong with code anymore, I am not playing silly or anything

it was already retired (Pascal's triangle diagonal sum) So I thought I might as well have fun with it, Or if you are talking about other kata about prime factorization , that's in draft, it's because There was no way to improve it so basically retired, but This is an actual translation, nothing is wrong with it. And nothing was, even before I changed the name of the function

Raku Translation
please review and approve