feat(sterni/aoc/2022): day13 BQN solution r/5416

Change-Id: I401ba09198d447628fa76d811fd4fe780baa8240
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7586
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Autosubmit: sterni <sternenseemann@systemli.org>

3 files changed, 18 insertions, 2 deletions

diff --git a/users/sterni/exercises/aoc/2022/11/11.bqn b/users/sterni/exercises/aoc/2022/11/11.bqn
index 926fa951df56..12b9b5097a59 100644
--- a/users/sterni/exercises/aoc/2022/11/11.bqn
+++ b/users/sterni/exercises/aoc/2022/11/11.bqn
@@ -1,6 +1,6 @@
 # needs export BQNLIBS=/path/to/mlochbaum/bqn-libs
-⟨Split⟩ ← •Import "/strings.bqn"∾˜¯1↓1⊑•SH "printenv"‿"BQNLIBS"
-⟨ReadDec⟩ ← •Import "../../lib.bqn"
+⟨ReadDec,ImportBqnLibs⟩ ← •Import "../../lib.bqn"
+⟨Split⟩ ← ImportBqnLibs "strings.bqn"
 MakeOp ← {
   𝕊 a‿"+"‿b: 𝕊 a‿+‿b;
   𝕊 a‿"*"‿b: 𝕊 a‿×‿b;
diff --git a/users/sterni/exercises/aoc/2022/13/13.bqn b/users/sterni/exercises/aoc/2022/13/13.bqn
new file mode 100644
index 000000000000..0242cc5093a1
--- /dev/null
+++ b/users/sterni/exercises/aoc/2022/13/13.bqn
@@ -0,0 +1,14 @@
+lib ← •Import "../../lib.bqn"
+str ← lib.ImportBqnLibs "strings.bqn"
+i ← >⟨"[","]"⟩‿⟨"⟨","⟩"⟩⊸(•BQN str.ReplaceAll)¨¨0((⟨⟩⊸≡¨¯1˙⍟⊣¨(+`(=⟜≠)¨))⊔⊢)•FLines "input"
+
+Ord ← {
+  i1 𝕊 i2: 1‿1≡•Type¨ i1‿i2? ¯1‿1‿0⊑˜i1(=+≤)i2;
+  i1 𝕊 l2: 1‿0≡•Type¨ i1‿l2? l2 Ord˜ ⋈i1;
+  l1 𝕊 i2: 0‿1≡•Type¨ l1‿i2? l1 Ord ⋈i2;
+  l1 𝕊 l2: 0‿0≡•Type¨ l1‿l2?
+  ⊑1↑0(≠/⊢)l1 Ord¨○((l1⌈○≠l2)⊸(↑⌾(+⟜1))) l2
+}
+
+•Out "day13.1: "∾•Fmt +´1+/(1⊸=Ord´)˘i
+•Out "day13.2: "∾•Fmt ×´1‿2++´˘¯1=⟨⟨2⟩⟩‿⟨⟨6⟩⟩Ord⌜⥊i
diff --git a/users/sterni/exercises/aoc/lib.bqn b/users/sterni/exercises/aoc/lib.bqn
index 172343b41979..8554d1ee6943 100644
--- a/users/sterni/exercises/aoc/lib.bqn
+++ b/users/sterni/exercises/aoc/lib.bqn
@@ -11,3 +11,5 @@ SplitOn ⇐ ((⊢ (-1˙)⍟⊣¨ +`∘(1⊸»<⊢))∘(≡¨)⊔⊢)
 SplitAt ← ((⊣≤↕∘≠∘⊢)⊔⊢)
 
 _fix ⇐ {𝕩 𝕊∘⊢⍟≢ 𝔽 𝕩}
+
+ImportBqnLibs ⇐ {•Import 𝕩∾˜"/"∾˜¯1↓1⊑•SH "printenv"‿"BQNLIBS"}