From bb543822b75cd5b009a4eba5e3991aeae8ae61d2 Mon Sep 17 00:00:00 2001
From: cyndilopez <46653331+cyndilopez@users.noreply.github.com>
Date: Wed, 27 Feb 2019 16:32:13 -0800
Subject: [PATCH] Create binary_to_decimal.rb

---
 binary_to_decimal.rb | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 binary_to_decimal.rb

diff --git a/binary_to_decimal.rb b/binary_to_decimal.rb
new file mode 100644
index 0000000..e1e3b62
--- /dev/null
+++ b/binary_to_decimal.rb
@@ -0,0 +1,12 @@
+require "pry"
+
+def binary_to_decimal(arr)
+  decimal_val = 0
+  index = arr.length - 1
+  arr.length.times do |i|
+    digit = arr[index]
+    decimal_val += digit * 2 ** i
+    index -= 1
+  end
+  return decimal_val
+end