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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.
I agree that is simple and easy to understand, but very performance heavy.
Yeah, I'm still learning. I will improve the more I practice 😃
I was assuming that this kata's tests were designed to make this kind of solution impossible for performance reasons but I can't argue that it's simple and easy to understand.