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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Pretty clever!
It's actually a well-known recursive algorithm. ;-)
My first try was clunky as well, and when I saw this solution I re-submitted this piece of code, just not to lose it. There's plenty Kata's for which this is a helpful subroutine.
this hurts man... after spending so much time on the code, seeing 1-line solutions is painfull. Anyways. Good job!
my self esteem after seeing these 1 line solutions be like "not stonks".