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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.
great solution. I hate you! Great job.love how clean the .drop and adding .first are!
It's not, it just converts it from a character to an integer; it seems that cubing a sequence before summing it doesn't change whether the sum will be divisible by 2! Quite a nice observation, and requires less work.