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Solution: Sort Array By Parity II

Explore a method to rearrange a given array so that even numbers occupy even indexes and odd numbers occupy odd indexes. This lesson teaches how to apply a modified cyclic sort combined with two pointers to swap misplaced elements efficiently, achieving an in-place solution with optimal time and space complexity.

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 ...