instruction:
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.
question:
[275, 398, 432, 305, 25, 124, 329, 12, 422, 466, 295, 96, 29, 365, 427, 389, 284, 397, 13, 99]
answer:
[275, 398, 432, 305, 25, 124, 329, 466, 422, 12, 295, 96, 29, 365, 427, 389, 284, 397, 13, 99]

question:
[419, 339, 472, 142, 46, 298, 90, 160, 378, 258, 389, 305, 364, 138, 233, 274, 122, 78, 124, 322]
answer:
[419, 339, 46, 142, 472, 298, 90, 160, 378, 258, 389, 305, 364, 138, 233, 274, 122, 78, 124, 322]

question:
[142, 384, 19, 322, 397, 411, 65, 214, 114, 75, 52, 40, 122, 337, 350, 289, 42, 236, 91, 386]
answer:
[142, 384, 411, 322, 397, 19, 65, 214, 114, 75, 52, 40, 122, 337, 350, 289, 42, 236, 91, 386]