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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.
of course!
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One reason I love looking at others' solutions is that I learn about things like std::swap.
I am too stupid to understand this. Can someone explain how this works? ret is an on stack object, and so shouldn't live past function exit?