Detailed Instructions: In this task, you are given a list of unique integers you need to swap the positions of maximum and minimum element in the list and return the updated list.
Q: [146, 168, 185, 214, 455, 494, 354, 479, 233, 332, 118, 371, 122, 384, 447, 39, 422, 352, 127, 99]
A:
[146, 168, 185, 214, 455, 39, 354, 479, 233, 332, 118, 371, 122, 384, 447, 494, 422, 352, 127, 99]