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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.
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Cheers! We're all here to improve at the end of the day so.. yeah ^^
Anyway, what's important is that we managed to come up with a solution, which might not be the best one, but it's still something!
Its okay. I thought I was being fairly clever with my solution too until I submitted it and saw other's solutions using
return n ** 3. Then I felt silly.