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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.
What a wonderful solution!
accum for accumulator, a typo?
my ridiculous fork
https://docs.ruby-lang.org/en/2.5.0/syntax/refinements_rdoc.html
https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/RefinementsSpec
No, what's cheating about it? A cheating solution would do something where they didn't have to make the functionality, they just set it to the solution or exits the code from running, etc.
edit: nevermind, see it now