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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.
Would require random tests
Functional solution in scala using recursion is not working with test runtime. In normal runtime returns de correct value. Maybe its a problem with scalatest.