June 2018 Update

Task/Gray-code/Julia/gray-code.julia

@@ -1,9 +1,8 @@
-gray_encode(n) = n $ (n >> 1)
-
-function gray_decode(n)
-    p = n
+grayencode(n::Integer) = n ⊻ (n >> 1)
+function graydecode(n::Integer)
+    r = n
     while (n >>= 1) != 0
-        p $= n
+        r ⊻= n
     end
-    return p
+    return r
 end