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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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This is a bruteforce, inefficient solution that one should be ashamed to use in production code.
The only right way to do it written in a concise, pythonic style.
Too bad it can't be marked as both clever and best practice.
Also, makes me wish there was a "stupid" button for solutions that count occurences of every number in the sequence.
Very educational.
Thank you for posting this.