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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'm not certain what the original author intended which is why I state it as a question. I do feel that it should either this point should be clear in the description or that the tests need to be rebuilt.
Something that I am confused about from looking at some of the highly marked solution in the ruby code. Should the color of the ghost be static after initialization or can one instance of ghost return a different color each time it is referenced?
Schrodinger's Ghost.
This works depending on the parameters of the problem:
Should the following function return 1 or 2?
solution('bbb','bb')