From 6ba94ee81371e51619c1242164747eaed58c0a5b Mon Sep 17 00:00:00 2001
From: Mina Shin <minamishin@hotmail.com>
Date: Wed, 27 Feb 2019 14:53:37 -0800
Subject: [PATCH 1/2] binary to decimal

---
 .DS_Store                | Bin 0 -> 6148 bytes
 lib/binary_to_decimal.rb |  17 +++++++++++------
 2 files changed, 11 insertions(+), 6 deletions(-)
 create mode 100644 .DS_Store

diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000000000000000000000000000000000000..ca6820171ab66373e439585f31e112a0ffc238a5
GIT binary patch
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literal 0
HcmV?d00001

diff --git a/lib/binary_to_decimal.rb b/lib/binary_to_decimal.rb
index 439e8c6..7c7af38 100644
--- a/lib/binary_to_decimal.rb
+++ b/lib/binary_to_decimal.rb
@@ -1,9 +1,14 @@
-# A method named `binary_to_decimal` that receives as input an array of size 8.
-# The array is randomly filled with 0’s and 1’s.
-# The most significant bit is at index 0.
-# The least significant bit is at index 7.
-# Calculate  and return the decimal value for this binary number using
-# the algorithm you devised in class.
 def binary_to_decimal(binary_array)
+    power = binary_array.length - 1
+    base_10 = 0
+  
+    binary_array.each do |i|
+      if i == 1
+        base_10 += 2 ** power
+      end
+      power -= 1
+    end
+    puts "#{binary_array} in base 10 is: #{base_10}"
+    return base_10
   raise NotImplementedError
 end

From a34888871a8e3c2167ed2b0f6b37f4e0db766648 Mon Sep 17 00:00:00 2001
From: Mina Shin <minamishin@hotmail.com>
Date: Wed, 6 Mar 2019 10:59:52 -0800
Subject: [PATCH 2/2] deleted raise exception

---
 lib/binary_to_decimal.rb | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/binary_to_decimal.rb b/lib/binary_to_decimal.rb
index 7c7af38..e6f0249 100644
--- a/lib/binary_to_decimal.rb
+++ b/lib/binary_to_decimal.rb
@@ -10,5 +10,4 @@ def binary_to_decimal(binary_array)
     end
     puts "#{binary_array} in base 10 is: #{base_10}"
     return base_10
-  raise NotImplementedError
 end