cleaning ignored files

1 files changed, 0 insertions, 60 deletions

diff --git a/2021/day-09/day-09.bak b/2021/day-09/day-09.bak
deleted file mode 100644
index 11ef8e6..0000000
--- a/2021/day-09/day-09.bak
+++ /dev/null
@@ -1,60 +0,0 @@
-#lang racket
-
-(require threading
-         "../jj-aoc.rkt")
-
-(define data
-  (for/vector ([l (in-lines (open-day 9))]
-               #:unless (equal? l ""))
-    (~>> l
-         string->list
-         (map (λ~>> ~a string->number))
-         list->vector)))
-
-(define max-rows (vector-length data))
-(define max-cols (vector-length (vector-ref data 0)))
-(define-values (min-rows min-cols) (values 0 0))
-
-(define (vector2d-ref vec coord)
-  (match-define `(,r ,c) coord)
-  (~> vec
-      (vector-ref r)
-      (vector-ref c)))
-
-(define (adjacent coords)
-  (match-define `(,r ,c) coords)
-  `((,(add1 r) ,c)
-    (,(sub1 r) ,c)
-    (,r ,(add1 c))
-    (,r ,(sub1 c))))
-
-(define (valid-coordinate coord)
-  (match-define `(,r ,c) coord)
-  (and (>= r min-rows)
-       (< r max-rows)
-       (>= c min-cols)
-       (< c max-cols)))
-
-(define (check-adjacent vec coord)
-  (define x (vector2d-ref vec coord))
-  (for*/and ([neighbor (in-list (adjacent coord))]
-             #:when (valid-coordinate neighbor))
-    (x . < . (vector2d-ref vec neighbor))))
-
-;; part 1
-(for*/sum ([r (in-range min-rows max-rows)]
-           [c (in-range min-cols max-cols)]
-           [x (in-value (vector2d-ref data `(,r ,c)))]
-           #:when (check-adjacent data `(,r ,c)))
-  (add1 x))
-
-;; part 2
-(define visited (make-hash))
-(define (flood-fill vec coord)
-  (if (and (< (vector2d-ref vec coord) 9)
-           (not (hash-has-key? visited coord)))
-      ((hash-set! visited coord 'visited)
-       (add1 (for/sum [(neighbor (in-list (adjacent coord)))
-                       #:when (valid-coordinate neighbor)]
-               (flood-fill vec neighbor))))
-      0))
\ No newline at end of file