diff --git a/2024/day04/day04.bqn b/2024/day04/day04.bqn index 4c77e12..5558767 100644 --- a/2024/day04/day04.bqn +++ b/2024/day04/day04.bqn @@ -7,6 +7,6 @@ na←+´+´∘⥊¨"XMAS"⊸⍷¨a nd←+´+´¨"XMAS"⊸⍷¨d •Show na+nd -idxs←(⥊↕¯2+≢in)+⌜↕3‿3 -Diags←0‿0⊸⍉¨ ⌽∘⍉⍟0‿1 -•Show +´{∧´(Diags𝕩⊑in)∊"MAS"‿"SAM"}˘idxs +d1←2⊸⥊¨3⥊↕3 +d2←⌽⊸(∾¨)↕3 +•Show +´⥊∧˝∊⟜"MAS"‿"SAM"˘⊑⟜in¨d1‿d2+⟜<⌜↕¯2+≢in