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Solution: Longest Repeating Character Replacement

Explore the sliding window approach to solve the longest repeating character replacement problem in a string. Learn how to maintain and adjust a dynamic window using two pointers and a frequency map to track character occurrences, ensuring the substring can be transformed into one with identical characters by replacing at most k characters. Understand the implementation, time complexity, and space complexity of this linear-time solution.

Statement

Given a string, s, and an integer, k, find the length of the longest substring in s, where all characters are identical, after replacing, at most, k characters with any other uppercase English character.

Constraints:

  • 11 \leq ...