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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.
yeah - no worries
That's just the way codewars is these days - don't want to make ranking up too easy ;)
As for the (0, 0) it should always be in the list - do you have any examples of when it wasn't?
I have moved it to first in the fixed tests.
No, the equation used is slightly different, which is why the way
pandqare applied is mentioned in the description. You should be able transform it to the canonical form without any problems if you need to.