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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.
No, words are sequences of alphanumeric chars and sometimes are separated by
"'"or followed by','.(but tests expect average length rounded to nearest integer)
Don't round float results (https://docs.codewars.com/authoring/recipes/floating-point).
No random tests.