mediumSliding WindowPattern: Sliding Window / Frequency Map
Longest Homogeneous Segment Solution
Problem Statement
Given an array of characters and an integer K, find the length of the longest segment that can be made homogeneous by replacing at most K characters.
Constraints
- 1 <= s.length <= 10^5
- s consists of uppercase English letters
- 0 <= k <= s.length
Time: O(N) Space: O(1)
Sliding window. Track max frequency of a single character in the current window. If window length - maxFreq > k, shrink window from left. Max length is the answer. Time O(N), Space O(1) (26 letters).
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