What is merge sort in C++?

Can you explain how merge sort works in C++?

Sure! Merge sort is a divide-and-conquer algorithm that sorts an array by dividing it into halves, sorting each half, and then merging them back together.

What is the time complexity of merge sort?

The time complexity of merge sort is O(n log n) in the worst, average, and best cases.

Can you show me a simple implementation of merge sort in C++?

Absolutely! Here's a basic implementation:

void merge(int arr[], int left, int mid, int right) {
    // Merging logic here
}

void mergeSort(int arr[], int left, int right) {
    // Recursive sorting logic here
}

Let me know if you need the complete code!

What are the advantages of using merge sort?

Merge sort is stable, works well with large datasets, and is efficient for linked lists. It's also predictable in terms of performance.