Problem: Valid Parentheses
Explore how to determine if a string of parentheses and brackets is valid by using a stack data structure in C#. Learn to implement an algorithm that checks for matching and properly nested brackets, gaining skills in stack usage and problem-solving with linear time and space complexity.
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Statement
Given a string s consisting only of the characters '(', ')', '{', '}', '[', and ']', determine whether the string represents a valid sequence of brackets.
A string is considered valid if all of the following conditions are satisfied:
Every opening bracket is closed by a bracket of the same type.
Brackets are closed in the correct (properly nested) order.
Every closing bracket has a matching opening bracket of the same type.
Return true if the string is valid, and false otherwise.
Constraints:
s.Length...