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.

[11, 396, 382, 413, 109, 386, 294, 389, 378, 132, 230, 358, 385, 371, 176, 242, 423, 313, 436, 272]
[436, 396, 382, 413, 109, 386, 294, 389, 378, 132, 230, 358, 385, 371, 176, 242, 423, 313, 11, 272]