3536. Maximum Product of Two Digits

Easy

10 Points

Math

Sorting

You are given a positive integer n. Return the maximum product of any two digits in n. Note: You may use the same digit twice if it appears more than once in n.

Examples

Example 1

Input: n = 31 Output: 3 Explanation:

Example 2

Input: n = 22 Output: 4 Explanation:

Example 3

Input: n = 124 Output: 8 Explanation:

Constraints

10 <= n <= 109