2016年2月2日
leetcode--Verify Preorder Serialization of a Binary Tree
摘要： One way to serialize a binary tree is to use pre-order traversal. When we encounter a non-null node, we record the node's value. If it is a null node, 阅读全文
posted @ 2016-02-02 11:02 pku_smile 阅读(136) 评论(0) 推荐(0)