Search⌘ K
AI Features

Solution: Largest Number After Digit Swaps by Parity

Explore how to create the largest number possible by swapping digits of the same parity using max-heaps. This lesson shows how to separate digits into odd and even heaps, efficiently retrieve the largest digits, and reconstruct the maximum number while adhering to parity swap constraints. Understand the heap operations and their impact on time and space complexity in this coding interview pattern solution.

Statement

You are given a positive integer num. You can swap any two digits of num as long as they share the same parity (both are odd or both are even).

Your task is to return the largest possible value of num after performing any number of such swaps.

Constraints:

  • 11 \leq num 109\leq 10^9 ...