How to Solve Minimum Remove to Make Valid Parentheses Problem
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Minimum Remove to Make Valid Parentheses
Given a string s of '(' , ')' and lowercase English characters. Your task is to remove the minimum number of parentheses ( '(' or ')', in any positions ) so that the resulting parentheses string is va...
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Understanding the Minimum Remove to Make Valid Parentheses Problem
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Problem Statement
Given a string s of '(' , ')' and lowercase English characters. Your task is to remove the minimum number of parentheses ( '(' or ')', in any positions ) so that the resulting parentheses string is valid and return any valid string. Formally, a parentheses string is valid if and only if: It is the empty string, contains only lowercase characters, or It can be written as AB (A concatenated with B), where A and B are valid strings, or It can be written as (A), where A is a valid string.
Minimum Remove to Make Valid Parentheses
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Examples
s = "lee(t(c)o)de)""lee(t(c)o)de""lee(t(co)de)" , "lee(t(c)ode)" would also be accepted.
s = "a)b(c)d""ab(c)d"s = "))(("""An empty string is also valid.
Constraints
1 <= s.length <= 105s[i] is either '(' , ')', or lowercase English letter.How Interview Coder Helps with Leetcode Problems
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