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Learn how to check if a string of balanced expression contains a redundant parenthesis or not. See examples, constraints, and code solution for this medium-level problem.
Jun 28, 2023 · Learn how to check if a string of balanced expressions has any redundant parenthesis using stack. See examples, code and explanation of the algorithm.
Dec 11, 2020 · Given valid mathematical expressions in the form of a string. You are supposed to return true if the given expression contains a pair of redundant brackets, else return false. The given string only contains ‘ (‘, ’)’, ‘+’, ‘-’, ‘*’, ‘/’ and lowercase English letters.
Remove Invalid Parentheses - Given a string s that contains parentheses and letters, remove the minimum number of invalid parentheses to make the input string valid. Return a list of unique strings that are valid with the minimum number of removals. You may return the answer in any order.
Given a valid expression containing only binary operators '+', '-', '*', '/' and operands, remove all the redundant parenthesis. A set of parenthesis is said to be redundant if, removing them, does not change the value of the exp
A pair of brackets is said to be redundant when a subexpression is surrounded by needless/ useless brackets. For Example : ((a+b)) has a pair of redundant brackets. The pair of brackets on the first and last index is needless. While (a + (b*c)) does not have any pair of redundant brackets.
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What if a string contains a pair of redundant brackets?
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Sep 28, 2022 · Learn how to check if an expression has redundant brackets using stack data structure and algorithm. See examples, code implementation and time and space complexity analysis.
