Given the task definition and input, reply with output. 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.

[224, 386, 364, 432, 468, 46, 205, 257, 308, 388, 261, 73, 402, 291, 403, 165, 147, 276, 222, 111]
[224, 386, 364, 432, 46, 468, 205, 257, 308, 388, 261, 73, 402, 291, 403, 165, 147, 276, 222, 111]