2 files changed, 16 insertions, 0 deletions
diff --git a/users/sterni/exercises/aoc/2022/08/8.bqn b/users/sterni/exercises/aoc/2022/08/8.bqn
new file mode 100644
index 000000000000..91a16d9573c9
--- /dev/null
+++ b/users/sterni/exercises/aoc/2022/08/8.bqn
@@ -0,0 +1,15 @@
+i ← >'0'-˜•FLines "input"
+Visible ← {
+  _vis ← {(⌈`∘(¯1⊸»˘⌾⍉)<⊢)⌾𝕏 𝕗}
+  ∨´𝕩 _vis¨ ⟨⊢,⌽,⍉,⌽⍉⟩
+}
+
+•Out "day08.1: "∾•Fmt +´⥊Visible i
+
+ViewingDistances ← {
+  DirView ← {≠1(»⟜(∧`(⊑𝕩)⊸>)/⊢) 1↓𝕩}
+  _spliceDir ← {! =´≢𝕗 ⋄ 𝕏⁼(⊢↓(⊏⟜(𝕏𝕗))∘⊣)´¨ ⋈⌜˜↕≠𝕗}
+  ×´ DirView¨¨ 𝕩 _spliceDir¨ ⟨⊢, ⌽˘, ⍉, ⌽˘⍉⟩
+}
+
+•Out "day08.2: "∾•Fmt ⌈´⥊ViewingDistances i
diff --git a/users/sterni/exercises/aoc/lib.bqn b/users/sterni/exercises/aoc/lib.bqn
index 025102b7760b..636eeace78d2 100644
--- a/users/sterni/exercises/aoc/lib.bqn
+++ b/users/sterni/exercises/aoc/lib.bqn
@@ -4,5 +4,6 @@ ReadInt ⇐ {(𝕨⊸×+⊣)´∘⌽-⟜'0'𝕩} # stolen from leah2
 ReadDec ⇐ 10⊸ReadInt
 
 SplitOn ⇐ ((⊢ (-1˙)⍟⊣¨ +`∘(1⊸»<⊢))∘(≡¨)⊔⊢)
+SplitAt ← ((⊣≤↕∘≠∘⊢)⊔⊢)
 
 _fix ⇐ {𝕩 𝕊∘⊢⍟≢ 𝔽 𝕩}