摘要: 1.题目: Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets must close i 阅读全文
posted @ 2016-11-24 16:09 PolarBearInterest 阅读(155) 评论(0) 推荐(0) 编辑
摘要: 主要尝试了3种列表去除重复元素 阅读全文
posted @ 2016-11-24 01:43 PolarBearInterest 阅读(1360) 评论(0) 推荐(0) 编辑