2015年11月27日
[Leetcode] Longest Palindromic Substring
摘要： 问题：Given a string S, find the longest palindromic substring in S. You may assume that the maximum length of S is 1000, and there exists one unique lon... 阅读全文
posted @ 2015-11-27 14:23 爪哇国臣民 阅读(147) 评论(0) 推荐(0)
[Leetcode] Letter Combinations of a Phone Number
摘要： 问题：Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the telep... 阅读全文
posted @ 2015-11-27 14:15 爪哇国臣民 阅读(176) 评论(0) 推荐(0)
[Leetcode] Valid Parentheses
摘要： 问题:Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.The brackets must close in th... 阅读全文
posted @ 2015-11-27 14:04 爪哇国臣民 阅读(164) 评论(0) 推荐(0)