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.

[Q]: [427, 96, 142, 132, 231, 208, 368, 234, 238, 157, 365, 428, 149, 429, 337, 206, 260, 436, 194, 424]
[A]: [427, 436, 142, 132, 231, 208, 368, 234, 238, 157, 365, 428, 149, 429, 337, 206, 260, 96, 194, 424]

[Q]: [192, 94, 99, 190, 320, 247, 334, 53, 177, 142, 451, 184, 496, 19, 117, 14, 265, 140, 430, 484]
[A]: [192, 94, 99, 190, 320, 247, 334, 53, 177, 142, 451, 184, 14, 19, 117, 496, 265, 140, 430, 484]

[Q]: [338, 79, 27, 229, 433, 471, 328, 497, 474, 322, 424, 42, 341, 393, 32, 479, 280, 493, 428, 103]
[A]:
[338, 79, 497, 229, 433, 471, 328, 27, 474, 322, 424, 42, 341, 393, 32, 479, 280, 493, 428, 103]