Official algorithmic problem description and constraints.
You are given two integers π₯ and π¦ of the same length, consisting of digits from 1
1 to 9.
You can perform the following operation any number of times (possibly zero): swap the π-th digit in π₯ and the π-th digit in π¦.
For example, if π₯=73 and π¦=31, you can swap the 2-nd digits and get π₯=71 and π¦=33.
Your task is to maximize the product of π₯ and π¦ using the aforementioned operation any number of times. If there are multiple answers, print any of them.
Detailed video explanations, mathematical intuition, and clean C++ implementation code.
