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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.
Having written an almost identical brute force algorithm, I can say this will most likely time out on the last test case. I think a mathematical solution is more appropriate in this case.
Super fun kata! Thanks!
Great stuff! Simple and elegant. I've been approaching thing this the wrong away.