Solution: Minimum String Length After Removing Substrings
Explore how to use a stack to remove all occurrences of 'AB' and 'CD' substrings from a string and determine its shortest length. Understand the iterative process of checking pairs and the efficiency of this approach in solving string manipulation problems relevant to 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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