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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.
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This was a very interesting one. Well done!
Interesting Kata. However, I would add more tests concerning performance, most javascript solutions can be 1 line, though they might not be the most efficient solutions in this planet.
What about approaching the problem in another way? it seems overcomplicated here :)
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