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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.
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Yes, it seems that the requirements have changed since I submitted the above solution.
It fails when I rerun the tests now.
Admittedly it isn't very efficient for large ranges; I just wanted to see how short of a solution I could find.
Doesn't this struggle with the maximum condition of
[-1000000000, 1000000000]? Or does Ruby do something smart to avoid actually populating an array with two billion values?While the array is unnecessary for this challenge, I like how this is ready to extend to covering the variety of matching brackets.
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