RosettaCodeData/Task/Fibonacci-sequence/Common-Lisp/fibonacci-sequence-2.lisp
2023-07-01 13:44:08 -04:00

7 lines
131 B
Common Lisp

(defun fibonacci (n)
(let ((a 0) (b 1) (c n))
(loop for i from 2 to n do
(setq c (+ a b)
a b
b c))
c))