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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.
what does this one use under the hood?
Good solution, this one would be O(n) compared to the O(n^2) that are more popular right?
This comment is hidden because it contains spoiler information about the solution
i mean LOL
Very clean, I like this one