Solution: Minimum String Length After Removing Substrings
Explore how to use a stack data structure to remove all occurrences of the substrings AB and CD from a given string. Understand the step-by-step process of checking and removing pairs, leading to the shortest string length possible. This lesson helps you efficiently apply stack techniques to solve substring removal problems with linear time complexity.
We'll cover the following...
Statement
You are given a string, s, containing only uppercase English letters. You can perform operations on this string where, in each operation, you remove any occurrence of the substrings "AB" or "CD" from s.
Your task is to return the shortest string length after applying all possible operations.
Note: After each removal, the string joins back together, potentially creating new occurrences of "AB" or "CD" that can also be removed.
Constraints:
...