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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.
This was way harder than the last ten 6kyu katas I did. I think this should be at least 5kyu or even 4kyu. It requires data structures, possible recursive loops, and several functions.
Too easy. Should be 5 kyu or lower.
This is probably the cleanest, most logical solution.