Funny one, "no more hints" on sample tests is actually helpful even if it hurts, as it makes you focus on your code and write exactly what you want rather than just hotfixing until the code passes everything.

The output should have been an optional tuple of an int and a char, not a nullable, necessarily heterogeneous, array. This is overly monolinguistic.

I'm not sure what can be done now. Python ( and, proposed, Haskell ) correctly use a tuple, but the description suffers.

Haskell translation

this translation modifies the description

intersting , thanks anthor

Nice kata to warm up

Yeah, I completely agree with this.

Really cool kata :D

Unclear about what, return true or false depending on whether it's a valid hour

That's not a suggestion

Fun as a 1-line challenge, I'm pretty new at these but at least it worked :D

ez but fun :D

This kata is evil, cool but hard 😥

rejecting because i approved this one which was older and fixed the inconsistency between Python and the other languages