https://leetcode.com/problems/longest-repeating-character-replacement/description/ Longest Repeating Character Replacement - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com 제일 속도가 빠른 해답은 이건 데, count[s.charAt(start) - 'A']--해도 maxCount가 계산되는 것이 아직 이해가 안간다. class Solution { public in..