2018年2月1日
199. Binary Tree Right Side View
摘要： Given a binary tree, imagine yourself standing on the right side of it, return the values of the nodes you can see ordered from top to bottom. For exa 阅读全文
posted @ 2018-02-01 12:18 乐乐章 阅读(147) 评论(0) 推荐(0)
173. Binary Search Tree Iterator(中序遍历)
摘要： Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST. Calling next() will return the n 阅读全文
posted @ 2018-02-01 10:53 乐乐章 阅读(150) 评论(0) 推荐(0)