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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 entered the reference code in the trainer and it passes the tests. (That
the kata may be impossible to completeis quite misleading. I had to slightly change the reference solution to remove that message...)Yes,
band&bare the same address, but the important part is their types. I guess you need to research more ;-)Sorry, I'm not really active on CW at the moment.