Selection Sort Complexity

The video tutorial explains the complexity of selection sort, focusing on its O(n^2) complexity. It uses two loops, resulting in n^2 iterations. A mathematical explanation is provided, showing the series n(n-1)/2, which simplifies to n^2/2 - n/2. The video discusses best, average, and worst-case scenarios, all resulting in O(n^2) complexity. The tutorial concludes by emphasizing the importance of understanding selection sort's complexity and encourages viewers to revisit the material if needed.

What mathematical series is derived from the comparisons made in selection sort?

Why is it important to ignore constants when discussing the complexity of algorithms?