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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.
My code was fast enough. I'm unsure what the problem was, but both my original solution and an increasingly optimized version of it returned success when I tried submitting it a few hours later. It may be worth checking your tests to see if any might be excessive to the purpose they intend to serve. Thanks!
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