Solution: Sort Array By Parity II
Explore how to solve the problem of sorting an array by parity using a modified cyclic sort and two-pointer technique. Understand how to place even numbers at even indexes and odd numbers at odd indexes with efficient in-place swaps. This lesson teaches a clear and optimal method to rearrange elements based on parity with linear time complexity and constant space usage.
We'll cover the following...
We'll cover the following...
Statement
You are given an integer array, nums, where exactly half of the elements are even, and the other half are odd.
Rearrange nums such that:
All even numbers are placed at even indexes
...