09 Sept 2026•Go / Python / TypeScript•Easy

Subtract the Product and Sum of Digits of an Integer

Subtract the sum of an integer's digits from the product of its digits.

View original LeetCode question

Extract decimal digits one at a time, accumulating their product and sum, then return the difference.

complexity

O(log n) time and O(1) space.

solution files

Go subtract-the-product-and-sum-of-digits-of-an-integer/solution.go
Python subtract-the-product-and-sum-of-digits-of-an-integer/solution.py
TypeScript subtract-the-product-and-sum-of-digits-of-an-integer/solution.ts

Solution files

Go•subtract-the-product-and-sum-of-digits-of-an-integer/solution.go

package main

func subtractProductAndSum(n int) int {
	product, sum := 1, 0
	for n > 0 {
		digit := n % 10
		product *= digit
		sum += digit
		n /= 10
	}
	return product - sum
}

Python•subtract-the-product-and-sum-of-digits-of-an-integer/solution.py

class Solution:
    def subtractProductAndSum(self, n: int) -> int:
        product, total = class="syntax-number">1, class="syntax-number">0
        while n:
            n, digit = divmod(n, class="syntax-number">10); product *= digit; total += digit
        return product - total

TypeScript•subtract-the-product-and-sum-of-digits-of-an-integer/solution.ts

function subtractProductAndSum(n: number): number {
  let product = class="syntax-number">1; let sum = class="syntax-number">0;
  while (n > class="syntax-number">0) { const digit = n % class="syntax-number">10; product *= digit; sum += digit; n = Math.floor(n / class="syntax-number">10); }
  return product - sum;
}