2016年8月21日
摘要: 问题描述 Suppose we abstract our file system by a string in the following manner: The string "dir\n\tsubdir1\n\tsubdir2\n\t\tfile.ext" represents: dir sub 阅读全文
posted @ 2016-08-21 15:33 HorseShoe2016 阅读(454) 评论(0) 推荐(0) 编辑
摘要: 问题描述 Given a string, find the first non repeating character in it and return it's index. If it doesn't exist, return 1. Examples: s = "leetcode" retur 阅读全文
posted @ 2016-08-21 15:15 HorseShoe2016 阅读(608) 评论(0) 推荐(0) 编辑
摘要: 问题描述 Given an integer n, return 1 n in lexicographical order. For example, given 13, return: [1,10,11,12,13,2,3,4,5,6,7,8,9]. Please optimize your alg 阅读全文
posted @ 2016-08-21 15:07 HorseShoe2016 阅读(445) 评论(1) 推荐(0) 编辑