Solution: Sort Array By Parity II
Discover how to efficiently rearrange an integer array such that even numbers are positioned at even indexes and odd numbers at odd indexes. This lesson teaches a modified cyclic sort technique combined with two pointers to swap misplaced elements in place, optimizing time complexity to O(n) and space complexity to O(1). You will learn to handle parity-based sorting directly, which enhances your coding interview problem-solving skills.
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
...