[2024][ruby][10.x] refactored to bring part one back

1 month ago · 7b117f5370
parent afd49ca1c6
commit 7b117f5370
1 changed files with 6 additions and 1 deletions
--- a/2024/ruby/day_10.rb
+++ b/2024/ruby/day_10.rb
@ -26,13 +26,18 @@ def trails(map, head)
  end

  finished
-    .select { _1.length > 2 && map.fetch(_1.last) == 9 }
+    .select { map.fetch(_1.last) == 9 }
    .uniq
 end

+# part one
+pp trailheads.sum { trails(map, _1).map(&:last).uniq.length }
+
+# part two
 pp trailheads.sum { trails(map, _1).length }

 __END__
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