2017年3月21日
389. Find the Difference
摘要： 题目： Given two strings s and t which consist of only lowercase letters. String t is generated by random shuffling string s and then add one more letter 阅读全文
posted @ 2017-03-21 03:45 panini 阅读(124) 评论(0) 推荐(0) 编辑
387. First Unique Character in a String
摘要： 题目： Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. Examples: Note: You may assume 阅读全文
posted @ 2017-03-21 01:23 panini 阅读(141) 评论(0) 推荐(0) 编辑