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]: [63, 76, 415, 162, 264, 208, 139, 178, 100, 93, 368, 360, 491, 420, 392, 58, 301, 366, 430, 445]
[EX A]: [63, 76, 415, 162, 264, 208, 139, 178, 100, 93, 368, 360, 58, 420, 392, 491, 301, 366, 430, 445]

[EX Q]: [320, 36, 433, 155, 388, 25, 359, 396, 90, 98, 153, 355, 352, 111, 440, 437, 139, 470, 370, 416]
[EX A]: [320, 36, 433, 155, 388, 470, 359, 396, 90, 98, 153, 355, 352, 111, 440, 437, 139, 25, 370, 416]

[EX Q]: [137, 404, 334, 99, 264, 444, 439, 348, 488, 402, 475, 436, 163, 98, 19, 132, 432, 292, 338, 464]
[EX A]:
[137, 404, 334, 99, 264, 444, 439, 348, 19, 402, 475, 436, 163, 98, 488, 132, 432, 292, 338, 464]