aboutsummaryrefslogtreecommitdiff
path: root/aoc2021/day-02/day-02.rkt
diff options
context:
space:
mode:
Diffstat (limited to 'aoc2021/day-02/day-02.rkt')
-rw-r--r--aoc2021/day-02/day-02.rkt24
1 files changed, 0 insertions, 24 deletions
diff --git a/aoc2021/day-02/day-02.rkt b/aoc2021/day-02/day-02.rkt
deleted file mode 100644
index 0bd0c3d..0000000
--- a/aoc2021/day-02/day-02.rkt
+++ /dev/null
@@ -1,24 +0,0 @@
-#lang racket
-(require advent-of-code
- threading
- algorithms)
-
-(define motion-data
- (~> (open-aoc-input (find-session) 2021 2 #:cache (string->path "./cache"))
- (port->list read _)
- (chunks-of _ 2)))
-
-;; part 1
-(for/fold ([depth 0] [position 0] #:result (* depth position)) ([motion (in-list motion-data)])
- (match motion
- [(list 'forward x) (values depth (+ position x))]
- [(list 'up x) (values (- depth x) position)]
- [(list 'down x) (values (+ depth x) position)]))
-
-;; part 2
-(for/fold ([aim 0] [depth 0] [position 0] #:result (* depth position))
- ([motion (in-list motion-data)])
- (match motion
- [(list 'forward x) (values aim (+ depth (* aim x)) (+ position x))]
- [(list 'up x) (values (- aim x) depth position)]
- [(list 'down x) (values (+ aim x) depth position)]))