Created
September 3, 2011 11:31
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[4clojure #44] Write a function which can rotate a sequence in either direction.
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| (defn rotate [n coll] | |
| (let [[f s] (split-at (mod n (count coll)) coll)] | |
| (concat s f))) | |
| (rotate 2 [1 2 3 4 5]) | |
| ;; => (3 4 5 1 2) |
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(defn rotate
[n coll](let [m %28mod n %28count coll%29%29]
%28concat %28drop m coll%29 %28take m coll%29%29))