diff options
| author | Mistivia <i@mistivia.com> | 2024-02-25 20:11:54 +0800 |
|---|---|---|
| committer | Mistivia <i@mistivia.com> | 2024-02-25 20:11:54 +0800 |
| commit | 515ecbf5a20a8e432a998b0a543bedcb1bd64cf4 (patch) | |
| tree | 6353c603a8cf0276553f420205f8d1c730a318ce /advent-of-code/2023/06/1.rkt | |
| parent | e191b610c11326b587cf0b01fd6fc37b8d07bb19 (diff) | |
reorg code
Diffstat (limited to 'advent-of-code/2023/06/1.rkt')
| -rw-r--r-- | advent-of-code/2023/06/1.rkt | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/advent-of-code/2023/06/1.rkt b/advent-of-code/2023/06/1.rkt deleted file mode 100644 index 5496476..0000000 --- a/advent-of-code/2023/06/1.rkt +++ /dev/null @@ -1,32 +0,0 @@ -#lang racket - -(define in (open-input-file "input")) - -(define (read-num-list) - (define line (read-line in)) - (map - string->number - (string-split - (cadr (string-split (string-trim line) ":"))))) - -(define times (read-num-list)) -(define distances (read-num-list)) - -(define games (map cons times distances)) - -(define (calc time hold-time) - (* hold-time (- time hold-time))) - -(define (solve time distance) - (define (loop counter hold-time) - (if (> hold-time time) - counter - (if (> (calc time hold-time) distance) - (loop (+ 1 counter) (+ 1 hold-time)) - (loop counter (+ 1 hold-time))))) - (loop 0 0)) - -(display (apply * (map - (λ (x) (solve (car x) (cdr x))) - games))) -(newline) |
