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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.
Very bad kata. negative numbers are not prime.
Ive been asked this in a job interview.
what if two elements are missing?
Genius
Very well done!