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Diffstat (limited to '2021/day-22/day-22.rkt')
-rw-r--r-- | 2021/day-22/day-22.rkt | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/2021/day-22/day-22.rkt b/2021/day-22/day-22.rkt deleted file mode 100644 index 1dc4211..0000000 --- a/2021/day-22/day-22.rkt +++ /dev/null @@ -1,32 +0,0 @@ -#lang racket -(require "../../jj-aoc.rkt" - threading) - -(struct step (instruction xs ys zs) #:transparent) - -;; part 1 -(define (clamped-range nmin nmax) - (in-inclusive-range (max (string->number nmin) -50) - (min (string->number nmax) 50))) - -(define steps - (for/list ([l (in-list (~> (open-day 22 2021) (port->lines)))]) - (~>> l - (regexp-match #px"(.+) x=(-?\\d+)..(-?\\d+),y=(-?\\d+)..(-?\\d+),z=(-?\\d+)..(-?\\d+)") - rest - (match _ [(list direction xmin xmax ymin ymax zmin zmax) - (step (string->symbol direction) - (clamped-range xmin xmax) - (clamped-range ymin ymax) - (clamped-range zmin zmax))])))) - -(~> (for*/fold ([cubes (hash)]) - ([s (in-list steps)] - [to (in-value (step-instruction s))] - [x (step-xs s)] - [y (step-ys s)] - [z (step-zs s)]) - (hash-set cubes (list x y z) to)) - hash-values - (count (curry equal? 'on) _)) - |