The real point was that I just wanted to get into discussion with you 😅 No, all joking aside... In retrospect, I should have already made these changes myself.

Thanks for the comment! I corrected the formular. Can you please check if the problem persists?

Thanks for the comment! I corrected the formular. Can you please check if the problem persists?

Thank you for the advice. I rarely create coding puzzles and therefore take the criticism seriously. I have added more hints and tagged the task as a puzzle.

Thanks for the comment! I added some more hints. As a programmer, I like the character of programming puzzles whose requirement is not immediately obvious, so I don't want to give too many clues. However, if it turns out that it is clearly too little, I am happy to give more hints.
Maybe it's not underspecified, but underrated?

You have an overview of possible dependencies that are included for use in Codewars Katas :-)
https://docs.codewars.com/languages/java

I've committed another solution where I make use of "Pair":
https://www.codewars.com/kata/reviews/61541e19b41962000146c253/groups/6154def037cc2d0001cc5dbc

Personally I like this solution more, but I understand the aspect of not beeing as performant as it could be ;-)

Thanks, I added some more test cases. Does that work for you?

Okay. Hopefully, I corrected the failure with the latest republishing :-)

Yes, related to the "sample test", I forgot to include the import, but I've the same problems with the other Tests and cannot publish a correction :-(

I have a pending approval for a Java translation and would be glad if someone could have a look at it :-)

Unfortunately, this seems to be true. My only difference is the attention to large numbers using BigInteger (in case of Java). Especially for such problems data types (and of course streaming approaches) are more interesting for me.

Since this was my first "own" kata, perhaps there are other ways to enhance the kata mentioned in your link above?

Thanks for the tip! I added some random inputs.