Method getDigitSum

MaxSumOfAPairWithEqualSumOfDigits.java:2–9

(int num)

class Solution {
    public int getDigitSum(int num){
        int sum=0;
        while(num>0){
            sum += (num%10);
            num/=10;
        }
        return sum;
    }
    public int maximumSum(int[] nums) {
        // HashMap<Integer,Integer> map = new HashMap<>();
        int map[] = new int[82];