What is Selection Sort time complexity?

O(n²) worst, average, best—unyielding nested loops.

Does Selection Sort use extra space?

Nope, O(1)—in-place magic with one temp swap.

Selection Sort: Why This Quadratic Relic Still Crushes Modern Hype

QuickSort gets the glory, but Selection Sort's brutal honesty—picking minima one by one—forces you to confront sorting's raw mechanics. In a sea of adaptive black boxes, it's refreshingly transparent.

theAIcatchup Apr 08, 2026 3 min read

Step-by-step visualization of Selection Sort algorithm sorting an array

⚡ Key Takeaways

Minimal swaps make it memory-efficient despite O(n²) time 𝕏
Perfect for learning core sorting mechanics without library crutches 𝕏
Shines in small arrays or write-sensitive environments 𝕏

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#algorithm complexity #big o notation #selection sort #sorting algorithms

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