Question: -- 2. A backward list data structure -- Back Lists: Lists where elements are added to the back (snoc == rev cons) -- For example,

-- 2. A backward list data structure -- Back Lists: Lists where elements are added to the back ("snoc" == rev "cons") -- For example, the list [1,2,3] is represented as Snoc (Snoc (Snoc Nil 1) 2) 3)

-- Add an element to the beginning of a BList, like (:) does cons :: a -> BList a -> BList a cons = undefined

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