From d09c442cf6b5d977604c14a45a8d0d79910b95a7 Mon Sep 17 00:00:00 2001
From: Dimitri Lozeve <dimitri@lozeve.com>
Date: Fri, 8 May 2020 16:20:00 +0200
Subject: [PATCH] Solve problem 4

---
 phase1.dyalog | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/phase1.dyalog b/phase1.dyalog
index 07c9234..3ddcb65 100644
--- a/phase1.dyalog
+++ b/phase1.dyalog
@@ -5,6 +5,8 @@
  {(~⍵∊127+⍳64)⊂⍵}
  ⍝ 3: Excel-lent Columns
  (26⊥64-⍨⎕UCS)
+ ⍝ 4: Take a Leap
+ (1 3∊⍨(0+.=400 100 4∘.|⊢))
  ⍝ 6: Please Move to the Front
  {⍵[⍋⍺≠⍵]}
  ⍝ 7: See You in a Bit