JAVA_LeetCode 3442_Maximum Difference Between Even and Odd Frequency I

JAVA_LeetCode 3442_Maximum Difference Between Even and Odd Frequency I 풀이 class Solution { public int maxDifference(String s) { // key별 중복횟수를 담고, 빈도에 따라 값을 초기화하고 비교한다. int max = Integer.MIN_VALUE, min = Integer.MAX_VALUE; Map map = new HashMap(); for(char ch : s.toCharArray()) map.put(ch, map.getOrDefault(ch, 0) + 1); for(int num : map.values()) { if(num % 2 == 1) max = Math.max(max, num); else min = Math.min(min, num); } return max - min; } } * 출처 https://leetcode.com/prob...