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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 directions should mention that they guide array can have numbers missing in the random test
ex. [3,5,4,1]
if a number is composite then one of its roots will be less than or equal to its square root.