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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.
CoffeeScript, Crystal, Elixir, Factor, Clojure, Go, Julia, Lua, PHP, R, Racket, Reason, and TypeScript translations.
"Given the scrollY integer (always non-negative) and an array of non-negative integers (with at least one element)" - In Ruby, I'm all for a check to make sure the array of non-negative integers actually exists, but the language of the kata strongly indicates that this won't ever be the case and will always have at least one element. Perhaps worth editing the language?