It's quite disturbing that random tests time out without telling me what is the reason – generic slowness of the algorithm or one test run into an infinite loop, but which one? Wasted so much time trying to find edge cases, still no result. I remember now, this is exactly why we abandoned codewars previously. I will not make this mistake again.

Works now but I'm not 100% sure if it's the right way to set it up, we will see

I had very little time last Monday (weekly code kata) and I don't know where to paste them yet but I'll figure