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Solution: Longest Repeating Character Replacement

Explore how to apply the sliding window technique to solve the longest repeating character replacement problem, optimizing for time complexity by tracking character frequencies and replacements within a dynamic substring window.

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 s.length 103\leq 10^3

  • s consists of only uppercase English characters.

  • 00 \leq ...