2020年12月18日
[LeetCode] 921. Minimum Add to Make Parentheses Valid
摘要： A parentheses string is valid if and only if: It is the empty string, It can be written as AB (A concatenated with B), where A and B are valid strings 阅读全文
posted @ 2020-12-18 08:39 CNoodle 阅读(122) 评论(0) 推荐(0)
[LeetCode] 1541. Minimum Insertions to Balance a Parentheses String
摘要： Given a parentheses string s containing only the characters '(' and ')'. A parentheses string is balanced if: Any left parenthesis '(' must have a cor 阅读全文
posted @ 2020-12-18 08:10 CNoodle 阅读(554) 评论(0) 推荐(0)