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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.
Huh thank you for that I also made his mistake
Actually, there is no unnecessary computation here. min(numbers) is simply repeated both in the if and else conditions. Only one of them gets executed, though.