JAVA_LeetCode 2243_Calculate Digit Sum of a String

JAVA_LeetCode 2243_Calculate Digit Sum of a String 풀이 class Solution { public String digitSum(String s, int k) { // 재귀함수를 통한 풀이법 if (s.length() <= k) return s; String str = ""; int len = 0, sum = 0; while (len < s.length()) { sum = 0; for (int i = 0; i < k && len + i < s.length(); i++) sum += s.charAt(len + i) - '0'; str += sum; len += k; } return digitSum(str, k); } } * 출처 https://leetcode.com/problems/calculate-digit-sum-of-a-string...