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-2.2.1.180	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.179	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.178	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.177	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.176	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.175	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.174	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.173	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.172	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.171	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.170	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.169	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.167	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.166	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.165	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.164	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.163	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.162	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.161	tracks/elisp/exercises/armstrong-numbers/example.el
trackler-2.2.1.160	tracks/elisp/exercises/armstrong-numbers/example.el