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Grokking the Coding Interview Patterns in C++

Valid Parentheses

Explore how to verify valid parentheses strings using stack data structures. Learn to match opening and closing brackets correctly and maintain their order to solve common interview problems efficiently.

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Statement

Given a string that 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 closed in the correct order. Therefore, )( and ()(() are invalid.

Constraints:

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