Contents

;;; armstrong-numbers.el --- armstrong-numbers Exercise (exercism)

;;; Commentary:

;;; Code:

(defun armstrong-p (n)
  (let* ((digits (mapcar #'(lambda (d) (- d ?0)) (string-to-list (int-to-string n))))
	 (p (length digits)))
    (= n (apply '+ (mapcar #'(lambda (d) (expt d p)) digits)))))

(provide 'armstrong-numbers)
;;; armstrong-numbers.el ends here

Version data entries

31 entries across 31 versions & 1 rubygems

Version	Path
trackler-2.2.1.159	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.158	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.157	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.156	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.155	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.154	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.153	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.152	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.151	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.150	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.149	tracks/elisp/exercises/armstrong-numbers/example.el