diff --git a/2024/day11/day11.bqn b/2024/day11/day11.bqn
new file mode 100644
index 0000000..6801105
--- /dev/null
+++ b/2024/day11/day11.bqn
@@ -0,0 +1,16 @@
+Split←((⊢-˜+`׬)∘=⊔⊢)
+in←•ParseFloat¨' 'Split ¯1↓•FChars"input"
+
+h←⟨⟩•HashMap⟨⟩
+NumberOfDigits←{⌊1+10⋆⁼𝕩}
+F←{
+  𝕊0: ⟨1⟩;
+  n←NumberOfDigits 𝕩
+  (1=2|n)⊑⟨⟨⌊𝕩÷10⋆n÷2,(10⋆n÷2)|𝕩⟩,⟨2024×𝕩⟩⟩
+}
+G←{
+  0𝕊n: 1;
+  d𝕊n: {𝕊¯1: r←+´(d-1)⊸G¨F n ⋄ d‿n h.Set r ⋄ r ; 𝕩}¯1 h.Get d‿n
+}
+•Show +´25⊸G¨in
+•Show +´75⊸G¨in
diff --git a/2024/day11/input b/2024/day11/input
new file mode 100644
index 0000000..6a94b4e
--- /dev/null
+++ b/2024/day11/input
@@ -0,0 +1 @@
+872027 227 18 9760 0 4 67716 9245696