Solution: Minimum String Length After Removing Substrings
Explore how to apply stack operations to iteratively remove 'AB' and 'CD' substrings from a given string. Understand the algorithm to achieve the shortest possible string length after all removals, with clear steps and time-space complexity analysis.
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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:
s.length...