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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.
this isnt the best practice
Because this is probably the shortest way to write this code and make it work, clearly not the best practice tho
Why is it considered "clever" despite this solution is stupid af and works for O(n^2)?
You'll find this interesting
https://stackoverflow.com/questions/16108714/removing-duplicates-from-a-list-in-haskell-without-elem