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.

[EX Q]: [79, 236, 131, 353, 317, 265, 389, 82, 432, 453, 301, 226, 195, 91, 498, 316, 315, 172, 442, 439]
[EX A]: [498, 236, 131, 353, 317, 265, 389, 82, 432, 453, 301, 226, 195, 91, 79, 316, 315, 172, 442, 439]

[EX Q]: [319, 207, 24, 411, 458, 337, 145, 59, 387, 265, 199, 326, 262, 313, 282, 136, 310, 351, 42, 385]
[EX A]: [319, 207, 458, 411, 24, 337, 145, 59, 387, 265, 199, 326, 262, 313, 282, 136, 310, 351, 42, 385]

[EX Q]: [463, 157, 394, 291, 236, 444, 476, 438, 339, 215, 398, 198, 326, 134, 195, 249, 239, 482, 268, 368]
[EX A]:
[463, 157, 394, 291, 236, 444, 476, 438, 339, 215, 398, 198, 326, 482, 195, 249, 239, 134, 268, 368]