diff --git a/2024/day06/day06.bqn b/2024/day06/day06.bqn new file mode 100644 index 0000000..400aeb1 --- /dev/null +++ b/2024/day06/day06.bqn @@ -0,0 +1,15 @@ +in←>•FLines"input" +map←'#'=in +i‿j←⊑¨/¨(∨´˘⋈∨˝)'^'=in + +Move←{𝕊map‿i‿j‿v: + p←⌽/i↑j⊏˘map + newi←{0<≠p ? 1+⊑p ; ¯1} + v↩1¨⌾((∾⟜j¨1+newi+↕i-newi)⊸⊑)v + ⟨⌽∘⍉map,(≠map)-j+1,newi,⌽∘⍉v⟩ +} +•Show +´⥊3⊑Move•_while_(0≤2⊸⊑)⟨map,i,j,(≢map)⥊0⟩ + +candidates←≢⟜i‿j¨⊸/⥊↕≢map +Stop←{𝕊map‿i‿j‿v: ((i‿j⊑v)∧(¬⟨i-1,j⟩⊑v)∨(¬⟨i+1,j⟩⊑v))∨j<0} +•Show +´{0≤2⊑Move•_while_(¬Stop)⟨1⌾(𝕩⊸⊑)map,i,j,(≢map)⥊0⟩}¨candidates diff --git a/2024/day06/input b/2024/day06/input new file mode 100644 index 0000000..5bc1f4c --- /dev/null +++ b/2024/day06/input @@ -0,0 +1,130 @@ +...#........................................#........#.................#............#.#.......................#...............#..# +...#........#.....#..................................................................................#......#..#.................. 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