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Solution: Longest Repeating Character Replacement

Explore the sliding window approach to efficiently solve the longest repeating character replacement problem. Learn to track character frequencies and adjust the window to find the maximum substring length after up to k replacements, improving time efficiency compared to brute force.

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 ...