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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.
Unsure if this would apply to you. For me, my first attempt assumed all single-digit numbers so it failed for tests with multi-digit numbers. I had to rewrite the first part of my code which is probably still inefficient but it works :)
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