diff options
Diffstat (limited to 'AoC2022/02/solver.el')
| -rw-r--r-- | AoC2022/02/solver.el | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/AoC2022/02/solver.el b/AoC2022/02/solver.el index 9a1d68b..62dd554 100644 --- a/AoC2022/02/solver.el +++ b/AoC2022/02/solver.el @@ -25,9 +25,9 @@ (defun solver-translate (play) (pcase play - ((or ?A ?X) 'rock) - ((or ?B ?Y) 'paper) - ((or ?C ?Z) 'scissors))) + ((or 'A 'X) 'rock) + ((or 'B 'Y) 'paper) + ((or 'C 'Z) 'scissors))) (defun solver-weight (play) (pcase play @@ -46,9 +46,9 @@ ;; play to strategy (defun solver-translate-strategy (play) (pcase play - (?X 'loose) - (?Y 'draw) - (?Z 'win))) + ('X 'loose) + ('Y 'draw) + ('Z 'win))) (defconst solver-results '((rock . scissors) (scissors . paper) (paper . rock)) "Win-lose pairs") @@ -70,12 +70,13 @@ (defun solver-parse (strategy) (with-temp-buffer (insert-file-contents "input") - (seq-reduce (lambda (acc game) - (let* ((oponent (solver-translate (aref game 0))) - (my-game (funcall strategy oponent (aref game 2)))) - (+ acc (solver-weight my-game) (solver-result-a my-game oponent)))) - (split-string (buffer-string) "\n" t) 0))) + (goto-char 0) + (cl-loop while (not (looking-at (rx (* whitespace) eot))) + for oponent = (solver-translate (read (current-buffer))) + for my-game = (funcall strategy oponent (read (current-buffer))) + sum (+ (solver-weight my-game) (solver-result-a my-game oponent))))) (ert-deftest solver-results () (should (= 12535 (solver-parse #'solver-fixed-plays))) (should (= 15457 (solver-parse #'solver-reactive-plays)))) + |