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;;; leap.el --- Leap exercise (exercism)
;;; Commentary:
;;; Code:
(defun divisible-by-p (n d)
(equal 0 (% n d)))
(defun leap-year-p (year)
(and (divisible-by-p year 4)
(or (not (divisible-by-p year 100))
(divisible-by-p year 400))))
(provide 'leap-year-p)
;;; leap.el ends here
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