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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.
Question asks to solve when "given an array of minimum 4 POSITIVE integers"
The instructions specify that no negative or non-integer numbers will be included.