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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.
The recursive version worked locally but not here
The kata there is a sentence:
"..It should find two different items in the array"
The point there is about finding different values in context of array (different indices of values, not values itself)
Description should be fixed to clarify it