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Some recursive functions
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(defun anyoddp (l) | |
(cond ((null l) nil) | |
((oddp (car l)) t) | |
(t (anyoddp (cdr l))))) | |
(defun fact (n) | |
(cond ((zerop n) 1) | |
(t (* n (fact (1- n)))))) | |
(defun laugh (n) | |
(cond ((zerop n) '()) | |
(t (cons 'ha (laugh (1- n)))))) | |
(defun add-up (l) | |
(reduce #'+ l)) | |
(defun add-up-2 (l) | |
(cond ((null l) 0) | |
(t (+ (car l) (add-up-2 (cdr l)))))) | |
(defun alloddp (l) | |
(cond ((null l) t) | |
((evenp (car l)) nil) | |
(t (alloddp (cdr l))))) | |
(defun rec-member (m l) | |
(cond ((null l) nil) | |
((equal (car l) m) l) | |
(t (rec-member m (cdr l))))) | |
(defun fib (n) | |
(cond ((< n 2) 1) | |
(t (+ (fib (- n 1)) (fib (- n 2)))))) | |
(defun last-element (l) | |
(cond ((atom (cdr l)) (car l)) | |
(t (last-element (cdr l))))) | |
(defun count-down (n) | |
(cond ((equal n 1) '(1)) | |
(t (cons n (count-down (1- n)))))) | |
(defun square-list (l) | |
(cond ((null l) nil) | |
(t (cons (* (car l) (car l)) (square-list (cdr l)))))) |
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