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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.
isn't it an efficient way to store the sqrt result in a variable rather than doing it twice?
can anyone tell me what is the difference between mine and this solution? like why we shoould do it in this way only?
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