Contents

;;; nucleotide-count.el --- nucleotide-count Exercise (exercism)

;;; Commentary:

;;; Code:


(defun nucleotide-count (sequence)
  (let ((counts (copy-alist '((?A . 0) (?C . 0) (?G . 0) (?T . 0)))))
    (dolist (i (append sequence nil))
      (let ((n (assoc i counts)))
        (if n
            (setcdr n (1+ (cdr n)))
          (error "Invalid nucleotide '%c'" i))))
    counts))


(provide 'nucleotide-count)
;;; nucleotide-count.el ends here

Version data entries

395 entries across 395 versions & 1 rubygems

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