1 files changed, 0 insertions, 46 deletions
diff --git a/aoc2020/day-07/day-07.rkt b/aoc2020/day-07/day-07.rkt
deleted file mode 100644
index f2a1ffe..0000000
--- a/aoc2020/day-07/day-07.rkt
+++ /dev/null
@@ -1,46 +0,0 @@
-#lang racket
-(require advent-of-code
-         threading
-         rebellion/collection/entry
-         rebellion/collection/multidict)
-
-(define raw-rules (~> (open-aoc-input (find-session) 2020 7) (port->string) (string-split "\n")))
-
-(define (split-rule r)
-  (match-define (list head tail) (string-split (string-trim r #px" bags?.") " bags contain "))
-  (~>> tail
-       (regexp-split #px"( bags?,\\s)" _)
-       (map (λ~> (regexp-match* #px"(\\d+) (\\w+ \\w+)" _ #:match-select rest)))
-       append*
-       (map (λ~> (match _
-                   [(list n c) (list (string->symbol c) (string->number n))]
-                   ['() '()])))
-       (cons (string->symbol head) _)))
-
-(define rules-multidict
-  (for*/multidict ([ln (in-list raw-rules)] #:do [(match-define (list* from tos) (split-rule ln))]
-                                            [to (in-list tos)])
-                  (entry from to)))
-
-;; part 1
-(define (bags-that-eventually-contain target)
-  (for/fold ([holders (set)]) ([rule (in-multidict-entries rules-multidict)])
-    (match rule
-      [(entry outside (list (== target) _))
-       (set-union (set-add holders outside) (bags-that-eventually-contain outside))]
-      [_ holders])))
-
-(define part-1 (set-count (bags-that-eventually-contain '|shiny gold|)))
-(~a "Part 1: " part-1)
-;; (aoc-submit (find-session) 2020 7 1 part-1)
-
-;; part 2
-(define (bags-that-are-contained-by target)
-  (for/sum ([holding (in-multidict-entries rules-multidict)])
-           (match holding
-             [(entry (== target) (list held n)) (+ n (* n (bags-that-are-contained-by held)))]
-             [_ 0])))
-
-(define part-2 (bags-that-are-contained-by '|shiny gold|))
-(~a "Part 2: " part-2)
-;; (aoc-submit (find-session) 2020 7 1 part-2)