Given a string s containing only three types of characters: ‘(‘, ‘)’ and ‘*’, return true if s is&nb…
My memo and playground
My memo and playground
Given a string s containing only three types of characters: ‘(‘, ‘)’ and ‘*’, return true if s is&nb…
Given a string s of ‘(‘ , ‘)’ and lowercase English characters. Your task is to remove the minimum number of parentheses…
Given a string s of lower and upper case English letters. A good string is a string which doesn’t have two adjacent characters&nb…
A string is a valid parentheses string (denoted VPS) if and only if it consists of “(” and “)” characters only, and: We …
A string is a valid parentheses string (denoted VPS) if it meets one of the following: We can similarly define the nesting depth&n…