From eb21642bf4764aebb88dd69060c82c1c12bb98e3 Mon Sep 17 00:00:00 2001
From: Alpha Chen <alpha@kejadlen.dev>
Date: Mon, 4 Dec 2023 13:16:05 -0500
Subject: [PATCH] [2023][ruby][4.2] cleanup

---
 2023/ruby/day_04.rb | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/2023/ruby/day_04.rb b/2023/ruby/day_04.rb
index 6102de2..db19cf7 100644
--- a/2023/ruby/day_04.rb
+++ b/2023/ruby/day_04.rb
@@ -17,9 +17,6 @@ wins = Hash.new {|h,k|
   winners = winning & card
   new_cards = (1..winners.length).map { k + _1 }
 
-  h[k] = winners.empty? ? 1 : 1 + new_cards.sum { h[_1] }
+  h[k] = 1 + (winners.empty? ? 0 : new_cards.sum { h[_1] })
 }
-p cards.map {|id,(winning,card)|
-    wins[id]
-  }
-  .sum
+p cards.keys.sum { wins[_1] }