Question: ocaml Write a function flatten : ' a list list -> ' a list that flattens a list. For example, flatten [[1;2];[4;3]] = [1;2;4;3]. In

ocaml

Write a function

flatten : 'a list list -> 'a list

that flattens a list. For example, flatten [[1;2];[4;3]] = [1;2;4;3].

In [ ]:

let rec flatten l =

(* YOUR CODE HERE *)

In [ ]:

assert (flatten ([[1;2];[4;3]]) = [1;2;4;3])

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