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Solution: Remove All Adjacent Duplicates in String II

Explore how to use a stack to solve the problem of removing k adjacent duplicate characters from a string. This lesson guides you through implementing an efficient linear-time algorithm that dynamically tracks counts and handles cascading removals, helping you apply stack techniques to string manipulation problems commonly seen in coding interviews.

Statement

Given a string s and an integer k, a k-duplicate removal involves selecting k adjacent and equal characters from s and removing them, after which the left and right portions of the string are joined together.

Perform k-duplicate removals on s repeatedly until no more can be made.

Return the final string after all such removals. The answer is guaranteed to be unique.

Constraints:

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