diff options
| author | H.J <thechairman@thechairman.info> | 2024-10-09 11:36:55 -0400 |
|---|---|---|
| committer | H.J <thechairman@thechairman.info> | 2024-10-09 11:36:55 -0400 |
| commit | 8777ff071f7bb37631baa7b6717ad29961e50911 (patch) | |
| tree | 6d59c4ed58e454b960339c3d1151f0a879e8d7cb /racket/leetcode/lc-1185-day-of-week.rkt | |
| parent | 6156a9ef7be4012063a042aafb4e9b0d7eadde8e (diff) | |
| download | gleam_aoc-8777ff071f7bb37631baa7b6717ad29961e50911.tar.gz gleam_aoc-8777ff071f7bb37631baa7b6717ad29961e50911.zip | |
sorting by language
Diffstat (limited to 'racket/leetcode/lc-1185-day-of-week.rkt')
| -rw-r--r-- | racket/leetcode/lc-1185-day-of-week.rkt | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/racket/leetcode/lc-1185-day-of-week.rkt b/racket/leetcode/lc-1185-day-of-week.rkt new file mode 100644 index 0000000..c90a626 --- /dev/null +++ b/racket/leetcode/lc-1185-day-of-week.rkt @@ -0,0 +1,18 @@ +#lang racket +(require racket/date) + +(define day-names + (for/hash ([day-number (in-range 0 7)] + [day-name (in-list '("Sunday" + "Monday" + "Tuesday" + "Thursday" + "Friday" + "Saturday"))]) + (values day-number day-name))) + +(define/contract (day-of-the-week day month year) + (-> exact-integer? exact-integer? exact-integer? string?) + (hash-ref day-names (date-week-day + (seconds->date + (find-seconds 0 0 0 day month year))))) |