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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.
I am wondering - what does '^' do in the second if statement? Does it work the same way like '&&'?
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How can I get the arrays that are used to verify your attempt? I keep failing a test, because it expects 1, while my program outputs -1.