Answer: Confluent SWE Interview Question 2025 May | Sliding Window | on-campus

Solution: Fixed-Size Sliding Window with Frequency Difference Count Approach Use a fixed-size sliding window of length equal to p's length. Maintain two frequency arrays: one for p (pCount) and one for the current window (sCount). Track a diff counter representing how many character frequencies differ between the two arrays. When the window slides, update sCount for the incoming right character and outgoing left character, adjusting diff accordingly. When diff == 0, the window is an anagram — record the start ...