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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.
validation doesn't covered by the terms of this kata. It always int array (0-9) of 10 by kata.
No validation at all. What if we pass number 111 or array of different size?