Solution: Minimum String Length After Removing Substrings
Explore how to use a stack-based algorithm to iteratively remove all occurrences of the substrings AB and CD from a string. Learn to efficiently reduce the string length by checking and removing these pairs during a single pass, gaining a clear understanding of stack operations and their applications in string manipulation and coding interviews.
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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:
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