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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.
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I wrote it that way, but for some reason I got an error.
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Oh, I made such a construction for a function, but it turns out there are so many very simple solutions in one line...
This is probably the most terrible task I've ever seen, especially when you're solving it on swift and you're a beginner...