What is the time complexity of different sorting algorithms?

What is the time complexity of different sorting algorithms?

The time complexity varies by algorithm. For example, QuickSort has an average time complexity of O(n log n), while Bubble Sort is O(n^2).

Can you explain why QuickSort is faster than Bubble Sort?

QuickSort is faster because it uses a divide-and-conquer approach, efficiently partitioning the array, while Bubble Sort repeatedly compares adjacent elements.

What are the best cases for these algorithms?

The best case for QuickSort is O(n log n) when the pivot divides the array evenly. For Bubble Sort, it's O(n) when the array is already sorted.

Are there any sorting algorithms that are faster than O(n log n)?

Yes, certain algorithms like Counting Sort and Radix Sort can achieve linear time complexity, O(n), but they have specific requirements.