2014年10月18日
摘要: Problem:Given a linked list, remove thenthnode from the end of list and return its head.For example, Given linked list: 1->2->3->4->5, and n = 2. ... 阅读全文
posted @ 2014-10-18 23:45 higerzhang 阅读(184) 评论(0) 推荐(0) 编辑
摘要: Problem:Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the ... 阅读全文
posted @ 2014-10-18 23:26 higerzhang 阅读(161) 评论(0) 推荐(0) 编辑