Fork me on GitHub
摘要: Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. Examples: 除了两次for循环,暂时没有想到N时间复杂度的解 阅读全文
posted @ 2016-10-13 23:09 LinkinStar 阅读(155) 评论(0) 推荐(0) 编辑