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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.
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The current Elixir test case doesn't include large numbers nor negative numbers, so you discover the expectations when attempting, whereas other languages have those tests openly.
It would be more efficient to replace
sort $ nub
byData.List.Unique.sortUniq
but Data.List.Unique cannot be imported.