2015年12月15日
17.Letter Combinations of a Phone Number
摘要： Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the telephon... 阅读全文
posted @ 2015-12-15 16:51 ZHOU YANG 阅读(197) 评论(0) 推荐(0)
103.Binary Tree Zigzag Level Order Traversal
摘要： Given a binary tree, return thezigzag level ordertraversal of its nodes' values. (ie, from left to right, then right to left for the next level and al... 阅读全文
posted @ 2015-12-15 16:50 ZHOU YANG 阅读(267) 评论(0) 推荐(0)