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Solution: Decode String

Explore the stack-based solution for decoding strings encoded with repeating patterns. Learn to manage nested and sequential encoding using stacks, and understand how to systematically build decoded strings from innermost brackets outward. This lesson helps you implement and reason through the algorithm, ideal for coding interview preparation.

Statement

Given an encoded string, return its decoded version. The encoding rule follows the pattern: k[encoded string]k[encoded~string] ...