Reference:
1. http://www.cnblogs.com/zuoyuan/tag/leetcode/
2. https://github.com/qiyuangong/leetcode/tree/master/python
3. https://github.com/shichao-an/leetcode-python
LeetCode/Python: Reference Links
原文：https://www.cnblogs.com/lijinghuabj/p/9206216.html