Approved, thanks!

C Translation

I was confused by the information at first, but in the end it was just easy, no much complexities. I think, it would be enough to write that it is first necessary to make the sum of numbers of the same values and return the highest of them as a result.

Approved, thanks!

Haskell translation

Also, I've cleaned up the description a bit.

Result can't be [[2,2,1,3]]. In that case, 3 comes after 2 (it doesn't matter if they are adjacent or not), and so it doesn't break the second rule of [2,3].

Any alternatives then?

Currently there is no other lnguages, and when they are added, the "None/nil/null depending on language" is one of the worse choices.

When this kata is translated to other languages, the return for parralel lines should be "None/nil/null (depending on the language)".

Changed sum in description and initial code to total

In Python, it's not recommended to use the variable name "sum" because it is also the name of a built-in function sum(). If you use "sum" as a variable name, it may override the built-in sum() function, making it unavailable for use within the same scope. For example:

def zero_count(sum):
    return sum(range(10))

Scala translation

Lol well played to you I thought you had the win