Solution: Longest Repeating Character Replacement
Understand how to use the sliding window approach to solve the longest repeating character replacement problem efficiently. This lesson teaches you to maintain a window with frequency tracking to determine the longest substring made uniform by replacing up to k characters, optimizing time complexity to linear.
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:
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