Search⌘ K

Challenge: Valid Parentheses

Explore how to verify valid parentheses in a given string by applying stack and queue operations. Understand the rules for matching and ordering parentheses to solve coding interview challenges effectively.

We'll cover the following...

Statement

Given a string, exp, which may consist of opening and closing parentheses. Your task is to check whether or not the string contains valid parenthesization.

The conditions to validate are as follows:

  1. Every opening parenthesis should be closed by the same kind of parenthesis. Therefore, {) and [(]) strings are invalid.

  2. Every opening parenthesis must be ...