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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 cannot get pass the random tests, no matter how I order the results or sort them by some matter the test never passes
I could have used better names for helper mrthods; this is dynamic programming