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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.
You could be a stickler and force user to not have any spaces in solution
missing "non-empty"
In description says return the smaller number if 2 numbers are same distance from
n, but right now asking for the one appear first.