When should I use merge sort in C++?

When should I use merge sort in C++?

Merge sort is ideal for large datasets and when stability is required. It has a time complexity of O(n log n).

What are the advantages of using merge sort over quicksort?

Merge sort is stable and performs well on linked lists. It also guarantees O(n log n) time complexity, unlike quicksort.

Are there any scenarios where merge sort is not a good choice?

Yes, for small datasets, simpler algorithms like insertion sort may be faster due to lower overhead.

How does merge sort work in terms of implementation?

Merge sort works by dividing the array into halves, sorting each half, and then merging them back together.