How do different algorithms compare in terms of efficiency?

How do different algorithms compare in terms of efficiency?

Algorithms can be compared based on time complexity and space complexity. What specific algorithms are you interested in?

I'm curious about sorting algorithms like QuickSort and BubbleSort.

QuickSort has an average time complexity of O(n log n), while BubbleSort has O(n^2). QuickSort is generally more efficient.

What about their space complexity?

QuickSort has a space complexity of O(log n) due to recursion, while BubbleSort is O(1) since it sorts in place.

Are there scenarios where BubbleSort might be preferred?

Yes, BubbleSort can be useful for small datasets or when the data is nearly sorted, as it can be simpler to implement.