The lower the time and space complexity ... To implement a sorting algorithm in Python, you have several options. Utilize built-in functions like sorted() or .sort() to quickly sort lists.

Remembering complexity of each built-in function of Python is difficult for me and I am sure it will be difficult for you too. This is a collection of runtime and space complexity that I have ...

Use merge sort (in place - merging linked lists ... Merge using a basic merge() function on the two linked lists.