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author | J.J <thechairman@thechairman.info> | 2023-11-30 17:10:00 -0500 |
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committer | J.J <thechairman@thechairman.info> | 2023-11-30 17:10:00 -0500 |
commit | 8ab65dc2da1742eb86ec636c50c7018385b68167 (patch) | |
tree | c4fd556aca9b867cfa1f2f174128c30857353884 /aoc2015/day-04 | |
parent | fafbeaf9e3c09ba7a5bea7e47d5736001f8a5aa1 (diff) | |
download | gleam_aoc-8ab65dc2da1742eb86ec636c50c7018385b68167.tar.gz gleam_aoc-8ab65dc2da1742eb86ec636c50c7018385b68167.zip |
prep for 2023, renaming for consistency
Diffstat (limited to 'aoc2015/day-04')
-rw-r--r-- | aoc2015/day-04/day-04.rkt | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/aoc2015/day-04/day-04.rkt b/aoc2015/day-04/day-04.rkt new file mode 100644 index 0000000..2c16043 --- /dev/null +++ b/aoc2015/day-04/day-04.rkt @@ -0,0 +1,18 @@ +#lang racket +(require "../../jj-aoc.rkt" + threading + file/md5) + +(define secret-key (~> (open-day 4 2015) port->string string-trim)) + +(define (find-n-zeroes n) + (for/first ([i (in-naturals)] + #:when + (~>> i (~a secret-key) md5 bytes->string/utf-8 (string-prefix? _ (make-string n #\0)))) + i)) + +;; part 1 +(time (find-n-zeroes 5)) + +;; part 2 +(time (find-n-zeroes 6)) |