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-rw-r--r--examples/fifty.bqn1
1 files changed, 1 insertions, 0 deletions
diff --git a/examples/fifty.bqn b/examples/fifty.bqn
index d79f11cc..c235b24c 100644
--- a/examples/fifty.bqn
+++ b/examples/fifty.bqn
@@ -170,6 +170,7 @@ KnightsTour ← {
! (KnightsTour 6) ≡ 6‿6⥊0‿9‿20‿35‿6‿11‿21‿32‿7‿10‿19‿26‿8‿1‿34‿25‿12‿5‿33‿22‿31‿16‿27‿18‿2‿15‿24‿29‿4‿13‿23‿30‿3‿14‿17‿28
# 34
+# Fails when 𝕩 is 1; the APL version did this too!
_pow ← {𝔽´𝔽˜⍟(/2|⌊∘÷⟜2⍟(↕·⌈2⋆⁼⊢)𝕩)𝕨}
! 847288609443 ≡ 3 ×_pow 25