Answers for "Given an integer number n, return the difference between the product of its digits and the sum of its digits."

Given an integer number n, return the difference between the product of its digits and the sum of its digits.

class Solution {
    public int subtractProductAndSum(int n) {
        int res=0;
        int p=1;
        int sum=0;
        while(n!=0){
            int r=n%10;
            n=n/10;
             p=p*r;
             sum+=r;
        }
        res=p-sum;
        return res;
    }
}