Lecture -15 Selection Sort and its Code Implementation

In this video, we break down Selection Sort — one of the most important sorting algorithms for DSA interviews and competitive programming.
🔍 What You'll Learn:

How Selection Sort works step by step (Find Min → Swap → Repeat)
Why it's always Θ(n²) — even in the best case!
Difference between O(n²), Ω(n²), and Θ(n²) for Selection Sort
Why Selection Sort makes at most O(n) swaps (advantage over Bubble Sort)
Why it is NOT a stable sorting algorithm
Space complexity: O(1) — fully in-place

📊 Complexity Summary:
CaseTimeSpaceBestΩ(n²)O(1)WorstO(n²)O(1)AverageΘ(n²)O(1)

Видео Lecture -15 Selection Sort and its Code Implementation канала Coding Wala Bhai