(2022>README,1,5)+literate code for problem 1 rewrite,~minor changes to 5

Making README.org a literate document for my code to better describe
my process.
This commit is contained in:
2023-06-27 21:00:04 +01:00
parent 3d8c645541
commit 1041984da0
3 changed files with 123 additions and 20 deletions

View File

@@ -1,26 +1,26 @@
(defvar input (uiop:read-file-string "2022/1-input"))
(defvar *sep (format nil "~%~%"))
(defun parse-entity (inp)
(with-input-from-string (s inp)
(loop for line = (read-line s nil)
while line
collect (parse-integer line))))
(defun get-lists (input)
(let ((pos (search *sep input)))
(with-input-from-string (s (subseq input 0 pos))
(let ((converted
(loop
for line = (read-line s nil nil)
while line
collect (parse-integer line))))
(if (null pos)
(list converted)
(cons converted
(get-lists (subseq input (+ pos 2)))))))))
(let* ((pos (search *sep input))
(converted (parse-entity (subseq input 0 pos))))
(if (null pos)
(list converted)
(cons converted
(get-lists (subseq input (+ pos 2)))))))
(defvar sums (sort (mapcar (lambda (lst) (reduce #'+ lst)) (get-lists input)) #'>))
(defvar sums (sort (mapcar (lambda (lst) (reduce #'+ lst)) (get-lists input))
#'>))
;; First challenge
(format t "Top snacks: ~a" (car sums))
(format t "Round 1: ~a~%" (car sums))
;; Second challenge
(let ((first (car sums))
(second (car (cdr sums)))
(third (car (cdr (cdr sums)))))
(format t "~a,~a,~a:>~a" first second third (+ first second third)))
(destructuring-bind (first second third &rest _) sums
(format t "Round 2: ~a,~a,~a:>~a" first second third
(+ first second third)))