diff --git a/lib/array_equals.rb b/lib/array_equals.rb
index 58e8369..d2aec30 100644
--- a/lib/array_equals.rb
+++ b/lib/array_equals.rb
@@ -1,5 +1,20 @@
-# Determines if the two input arrays have the same count of elements
-# and the same integer values in the same exact order
 def array_equals(array1, array2)
-  raise NotImplementedError
+  if array1 == nil && array2 == nil
+    return true
+  end
+
+  if (array1 == nil && array2 != nil) || (array1 != nil && array2 == nil)
+    return false
+  end
+
+  if array1.length != array2.length
+    return false
+  end
+
+  (array1.length).times do |i|
+    if array1[i] != array2[i]
+      return false
+    end
+  end
+  return true
 end