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| 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/aoc2015/day-25 | |
| parent | 6156a9ef7be4012063a042aafb4e9b0d7eadde8e (diff) | |
| download | gleam_aoc-8777ff071f7bb37631baa7b6717ad29961e50911.tar.gz gleam_aoc-8777ff071f7bb37631baa7b6717ad29961e50911.zip | |
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Diffstat (limited to 'racket/aoc2015/day-25')
| -rw-r--r-- | racket/aoc2015/day-25/day-25.rkt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/racket/aoc2015/day-25/day-25.rkt b/racket/aoc2015/day-25/day-25.rkt new file mode 100644 index 0000000..975f4c3 --- /dev/null +++ b/racket/aoc2015/day-25/day-25.rkt @@ -0,0 +1,8 @@ +#lang racket + +(define max-r 2978) +(define max-c 3083) + +(for/fold ([code 20151125] [r 1] [c 1]) ([i (in-naturals)] #:break (and (= max-r r) (= max-c c))) + (define new-code (modulo (* code 252533) 33554393)) + (if (= r 1) (values new-code (add1 c) 1) (values new-code (sub1 r) (add1 c)))) |