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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.
Knowing the Gauss equation allows you to solve tons of these kinds of problems
Great one. Restrictions of the problem make for a good challenge.
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Loved this one. Really jacks with your head until you finally see it and then it's a breeze.
Love the nested class on this one.