1281. Subtract the Product and Sum of Digits of an Integer
https://leetcode.com/problems/subtract-the-product-and-sum-of-digits-of-an-integer
Description
Given an integer number n
, return the difference between the product of its digits and the sum of its digits. 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
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