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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.
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Is there a way to enforce a linear time solution, short of providing an input so big that a non-linear solution would cause a timeout? I would be happy to write a new one that requires linear time! (That's what I found so fascinating about this problem; haha, I'm even still trying to understand the math behind finding two missing variables in linear time...)
Just kidding, I think I found an infinite loop in my code. D'oh! I'm going to be on this one for a while....
Any reason on the back-end why I might be getting timed-out? I can't imagine that my implementation is really THAT slow. It seems to work out just fine for anything I throw at it. :/
Wow! This kata melted my brain!