rorate

なんとなく言語比較。

--Clojure
(defn rotate [lst]
  (reverse (map reverse lst)))

--Common Lisp
(defun rotate (lst)
  (reverse (mapcar #'reverse lst)))

--F#
> let rotate lst =
-     List.rev (List.map List.rev lst);;

val rotate : 'a list list -> 'a list list