Solution: Longest Repeating Character Replacement
Explore the sliding window approach to efficiently solve the longest repeating character replacement problem. Learn to track character frequencies, maintain a valid window size, and update the longest valid substring while optimizing time and space complexity.
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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