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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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Has anyone managed to solve this in Ruby? I have an O(n) solution which can calculate hamming(5000) in 200ms. I'm struggling to pass the volume of tests though withour it timing out after 6000ms