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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 really like how you managed checking the blocks with the vector. I was trying to think through how to do it that way it and couldn't see it clearly.
Passing all of the sample test cases, but I keep failing the attempt. Not sure what to do from here...