Solution: Longest Repeating Character Replacement
Understand how to use the sliding window technique to solve the longest repeating character replacement problem. Explore maintaining character frequencies and adjusting window size to find the maximum valid substring length with up to k character replacements in a single pass.
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:
...