Definition: 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.
Input: [153, 67, 331, 237, 494, 463, 447, 260, 433, 444, 107, 93, 372, 243, 247, 312, 395, 172, 464, 380]

[153, 494, 331, 237, 67, 463, 447, 260, 433, 444, 107, 93, 372, 243, 247, 312, 395, 172, 464, 380]