Update a_b_problem.py

yingl · web-flow · commit 7b0814f1dbb9 · 2017-04-25T14:14:23.000+08:00
diff --git a/a_b_problem.py b/a_b_problem.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-8 -*-
+# coding: utf-8
 
 class Solution:
     """
@@ -15,4 +15,6 @@ def aplusb(self, a, b):
             carry = ctypes.c_int32(a & b).value
             a = ctypes.c_int32(a ^ b).value
             b = ctypes.c_int32(carry << 1).value
-        return a
+        return a
+
+# easy: http://lintcode.com/zh-cn/problem/a-b-problem/
