When should I use different sorting algorithms in C++?

When should I use different sorting algorithms in C++?

It depends on the data and requirements. For small datasets, insertion sort is efficient, while quicksort is better for larger datasets.

What about stability in sorting algorithms?

Stable sorting algorithms, like merge sort, maintain the relative order of equal elements. This is important in certain applications.

Can you explain the time complexity of these algorithms?

Sure! Quicksort has an average time complexity of O(n log n), while bubble sort has O(n^2). Merge sort also has O(n log n) but is stable.

Which sorting algorithm is the fastest in practice?

In practice, quicksort is often the fastest due to its efficient average-case performance, but it can degrade with certain data patterns.