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-2.2.1.139	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.138	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.137	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.136	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.135	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.134	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.133	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.132	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.131	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.130	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.129	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.128	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.127	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.126	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.125	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.124	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.123	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.122	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.121	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.120	tracks/elisp/exercises/nucleotide-count/example.el