diff options
Diffstat (limited to 'aoc2020/day-03')
| -rw-r--r-- | aoc2020/day-03/day-03.rkt | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/aoc2020/day-03/day-03.rkt b/aoc2020/day-03/day-03.rkt deleted file mode 100644 index ee9edcf..0000000 --- a/aoc2020/day-03/day-03.rkt +++ /dev/null @@ -1,16 +0,0 @@ -#lang racket -(require "../../jj-aoc.rkt" - threading) - -(define (check-for-trees run rise) - (for*/sum ([(row i) (in-indexed (port->lines (open-day 3 2020)))] - #:when (= 0 (modulo i rise)) - [possible-tree (in-value (sequence-ref (in-cycle row) (* (/ run rise) i)))] - #:when (and (char=? possible-tree #\#))) - 1)) - -;; part 1 -(check-for-trees 3 1) - -;; part 2 -(~>> '((1 1) (3 1) (5 1) (7 1) (1 2)) (map (curry apply check-for-trees)) (apply *)) |