Subtract the Product and Sum of Digits of an Integer
Problem Statement - link #
Given an integer number n, return the difference between the product of its digits and the sum of its digits.
Examples #
Example 1:
Input: n = 234
Output: 15
Explanation:
Product of digits = 2 * 3 * 4 = 24
Sum of digits = 2 + 3 + 4 = 9
Result = 24 - 9 = 15
Example 2:
Input: n = 4421
Output: 21
Explanation:
Product of digits = 4 * 4 * 2 * 1 = 32
Sum of digits = 4 + 4 + 2 + 1 = 11
Result = 32 - 11 = 21
Constraints #
1 <= n <= 10^5
Solutions #
class Solution {
public:
int subtractProductAndSum(int n) {
int sum=0,pro=1,digit;
while(n>0){
digit = n%10;
sum+=digit;
pro*=digit;
n/=10;
}
return pro-sum;
}
};