What are the differences between sorting algorithms in C++?

What are the differences between sorting algorithms in C++?

In C++, common sorting algorithms include Quick Sort, Merge Sort, and Bubble Sort. Quick Sort is generally faster with an average time complexity of O(n log n), while Bubble Sort is simpler but less efficient with O(n^2). Merge Sort is stable and also O(n log n), making it suitable for linked lists.

Can you explain how Quick Sort works?

Sure! Quick Sort works by selecting a 'pivot' element from the array and partitioning the other elements into two sub-arrays: those less than the pivot and those greater than the pivot. It then recursively sorts the sub-arrays.

What about Merge Sort? How does it differ?

Merge Sort divides the array into halves, sorts each half, and then merges them back together. Unlike Quick Sort, it guarantees O(n log n) time complexity and is stable, but it requires additional space for the temporary arrays.

Which one should I use in my project?

It depends on your specific needs. If you need stability and are working with linked lists, Merge Sort is a good choice. For general purposes, Quick Sort is often preferred due to its efficiency.