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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 is a beginner kata.
Seems fixed.
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No reply since, resolved.
The test cases have since been updated.
Supplied test case doesn't work.
What should happen if the input array length is not 3? Raise an error?
The input array should probably not be called input_arrat
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