What is the optimal time and space complexity for Sort Array By Parity II?

The optimal approach for Sort Array By Parity II achieves O(N) time complexity and O(1) auxiliary space complexity. Keep i on even indices (0, 2, 4...) and j on odd indices (1, 3, 5...). When nums[i] is odd, search for the next j where nums[j] is even, and swap them.

What are the crucial edge cases to consider for Sort Array By Parity II?

Always consider empty inputs, boundary constraints, single-element data structures, negative values, and integer overflow conditions before finalizing your algorithm.

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Sort Array By Parity II

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