2019年8月25日
32. Longest Valid Parentheses
摘要： Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. Example 1: Exampl 阅读全文
posted @ 2019-08-25 08:34 Schwifty 阅读(111) 评论(0) 推荐(0)
20. Valid Parentheses
摘要： Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: No 阅读全文
posted @ 2019-08-25 05:48 Schwifty 阅读(134) 评论(0) 推荐(0)
290. Word Pattern
摘要： Given a pattern and a string str, find if str follows the same pattern. Here follow means a full match, such that there is a bijection between a lette 阅读全文
posted @ 2019-08-25 02:07 Schwifty 阅读(176) 评论(0) 推荐(0)
205. Isomorphic Strings
摘要： Given two strings s and t, determine if they are isomorphic. Two strings are isomorphic if the characters in s can be replaced to get t. All occurrenc 阅读全文
posted @ 2019-08-25 00:08 Schwifty 阅读(140) 评论(0) 推荐(0)