Updated

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yeah it makes no sense... i would think that null would be a better

I see, in the meantime, you can chose Node v10 or lower until it is fixed.

AFAIK they work fine, click reset and try again.

Return value should be a sorted array. - it says that in the description.

Thanks for your translation. Approved.

Eagles fly fast

Good tip, but it seems to turn the alghoritm a bit slower though.

Kata is tagged as PUZZLE.There is enough information to guess the formula.

Just don't use itertools. You don't need to check all the permutations.
This can be done with out it. :)

Are you talking about the example test cases ?
You can change them if you're not satisified
But the real test cases contain the 'it' function

Thank you! ;-)