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Diffstat (limited to 'aoc2022/day-22/day-22.rkt')
| -rw-r--r-- | aoc2022/day-22/day-22.rkt | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/aoc2022/day-22/day-22.rkt b/aoc2022/day-22/day-22.rkt deleted file mode 100644 index bcce5f8..0000000 --- a/aoc2022/day-22/day-22.rkt +++ /dev/null @@ -1,35 +0,0 @@ -#lang racket - -(require advent-of-code - threading) - -(struct posn (x y) #:transparent) - -(match-define (list raw-map raw-instructions) - (string-split (fetch-aoc-input (find-session) 2022 22 #:cache #true) "\n\n")) - -(define board-map - (for*/hash ([(row y) (in-indexed (string-split raw-map "\n"))] - [(col x) (in-indexed row)] - #:unless (equal? col #\space)) - (define tile - (match col - [#\. 'open] - [#\# 'wall])) - (values (posn x y) tile))) - -(define instructions - (~>> raw-instructions - (regexp-match* #px"(\\d+)|R|L") - (map (match-lambda - [(? string->number n) (string->number n)] - ["R" 'clockwise] - ["L" 'counterclockwise])))) - -(define start-tile - (~>> board-map - hash-keys - (filter (match-lambda - [(posn _ 0) #true] - [_ #false])) - (argmin posn-x)))
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