Solution: Largest Number After Digit Swaps by Parity
Discover how to rearrange digits of a number by swapping only digits that share the same parity to form the largest possible number. This lesson guides you through using max-heaps to efficiently store and retrieve odd and even digits, enabling you to build the maximum number while respecting parity constraints.
We'll cover the following...
We'll cover the following...
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:
num...