Nested lists
Write a function that nests the elements of a list one level deeper by repeating that element inside a new list a given number of times.
Examples
(nest [:a :b :c] 2) ;=> ((:a :a) (:b :b) (:c :c))
(nest [] 10) ;=> ()
(nest [1 2 3 4] 1) ;=> ((1) (2) (3) (4))
(nest [1 2 3] 0) ;=> (()()())Thanks to this site for the challenge idea where it is considered Hard in Java.
Please submit your solutions as comments on this gist.
