Solution: Minimum String Length After Removing Substrings
Explore how to efficiently reduce a string by iteratively removing 'AB' and 'CD' substrings using a stack. Understand the step-by-step process, learn the algorithm's time and space efficiency, and gain skills to apply stack data structure solutions to similar coding problems.
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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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