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golf + comments

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This commit is contained in:
Adam Jeniski 2025-12-08 22:29:46 -10:00
parent c47c11a973
commit 5ca7f15404
1 changed files with 4 additions and 5 deletions
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2025/src/day09.clj
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@ -38,14 +38,13 @@
;; part 2
(->> largest-squares
(filter (fn [[a b]]
(let [segments (filter (fn [[seg-a seg-b]] (and (not= a seg-a)
(not= a seg-b)
(not= b seg-a)
(not= b seg-b)))
(let [segments (filter (fn overlapping? [[seg-a seg-b]]
(and (not= a seg-a) (not= a seg-b)
(not= b seg-a) (not= b seg-b))) ;; filter out segments that include points a or b
line-segments)
[[cx cy] [dx dy]] [a b]]
(and (not (some #(intersect? [a b] %) segments))
(not (some #(intersect? [[cx dy] [dx cy]] %) segments))))))
(not (some #(intersect? [[cx dy] [dx cy]] %) segments)))))) ;; check reverse diaganol too
(sort-by (partial apply area))
last
(apply area))