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-2.2.1.159	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.158	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.157	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.156	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.155	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.154	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.153	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.152	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.151	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.150	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.149	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.148	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.147	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.146	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.145	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.144	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.143	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.142	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.141	tracks/elisp/exercises/nucleotide-count/example.el
trackler-2.2.1.140	tracks/elisp/exercises/nucleotide-count/example.el