摘要: 题目: Given a binary tree, return the preorder traversal of its nodes' values. For example:Given binary tree {1,#,2,3}, 1 \ 2 / 3 return [1,2,3]. Note:  阅读全文
posted @ 2015-05-07 04:05 YRB 阅读(562) 评论(0) 推荐(0) 编辑