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.

[262, 28, 30, 382, 287, 474, 413, 349, 356, 15, 202, 313, 86, 17, 204, 306, 229, 227, 247, 47]
[262, 28, 30, 382, 287, 15, 413, 349, 356, 474, 202, 313, 86, 17, 204, 306, 229, 227, 247, 47]