发布时间：2014-12-06 15:36:05
Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node.Show TagsHave you met t.........【阅读全文】
发布时间：2014-12-06 15:30:01
Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center).For example, this binary tree is symmetric: 1 / \ 2 2 / \ / \3 4 4 3But the following is not: 1 / \ 2 2 \ \ 3 3判断一棵树是不是镜像。关于树，直接的.........【阅读全文】
