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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.
suggestion closed
That is really silly then. This should be on mathwars.com, not codewars.com.
Same here. But then I realized this brilliant solution was probably googled. I bet this is one of these coding problems interviewers are fond of. ;-)