From d53116df72c8b05d44b5ead55a2d970201520d34 Mon Sep 17 00:00:00 2001
From: orthoplex <>
Date: Mon, 10 Nov 2025 00:16:28 +0100
Subject: Week 346 in Uiua

---
 challenge-346/orthoplex/uiua/ch-1.ua | 11 +++++++++++
 challenge-346/orthoplex/uiua/ch-2.ua | 18 ++++++++++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 challenge-346/orthoplex/uiua/ch-1.ua
 create mode 100644 challenge-346/orthoplex/uiua/ch-2.ua

diff --git a/challenge-346/orthoplex/uiua/ch-1.ua b/challenge-346/orthoplex/uiua/ch-1.ua
new file mode 100644
index 0000000000..0b037823c3
--- /dev/null
+++ b/challenge-346/orthoplex/uiua/ch-1.ua
@@ -0,0 +1,11 @@
+# uiua 0.17.2
+
+LongestParenthesis ← ⬚0/↥˙⊜⧻±⍥⍜(regex"\\(A*\\)"|↥@A)∞
+
+┌─╴test
+  ⍤⤙≍6 LongestParenthesis "(()())"
+  ⍤⤙≍4 LongestParenthesis ")()())"
+  ⍤⤙≍8 LongestParenthesis "((()))()(((()"
+  ⍤⤙≍2 LongestParenthesis "))))((()("
+  ⍤⤙≍2 LongestParenthesis "()(()"
+└─╴
diff --git a/challenge-346/orthoplex/uiua/ch-2.ua b/challenge-346/orthoplex/uiua/ch-2.ua
new file mode 100644
index 0000000000..9a3085dcc0
--- /dev/null
+++ b/challenge-346/orthoplex/uiua/ch-2.ua
@@ -0,0 +1,18 @@
+# uiua 0.17.2
+
+MagicExpression ← (
+  ⧅⋅⧻⊙{@*@+@-""}-₁⊸⧻             # separator combinations
+  ⍚⌟(/◇⊂♭⍉⊟⊂□"")                 # interleave
+  ▽⊸≡◇(≍⊸⍚⍜⋕∘⊜□⊸≥@0)             # leading zeros
+  ˜▽⊙=⟜≡◇(/+⊕(/×⊜⋕⊸≠@*)\+⊸∊"-+") # eval
+)
+
+┌─╴test
+  ⍤⤙≍{"1*2*3" "1+2+3"} MagicExpression "123" 6
+  ⍤⤙≍{"1*0+5" "10-5"} MagicExpression "105" 5
+  ⍤⤙≍{"2*3+2" "2+3*2"} MagicExpression "232" 8
+  ⍤⤙≍{"1*2*3+4" "1+2+3+4"} MagicExpression "1234" 10
+  ⍤⤙≍{"1+0*0+1" "1+0+0+1" "1+0-0+1"
+      "1-0*0+1" "1-0+0+1" "1-0-0+1"
+  } MagicExpression "1001" 2
+└─╴
-- 
cgit