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]: [402, 206, 116, 203, 177, 470, 131, 168, 396, 66, 450, 225, 460, 314, 166, 426, 209, 467, 267, 389]
[A]: [402, 206, 116, 203, 177, 66, 131, 168, 396, 470, 450, 225, 460, 314, 166, 426, 209, 467, 267, 389]

[Q]: [265, 209, 433, 482, 412, 249, 19, 456, 256, 334, 50, 223, 458, 135, 65, 282, 309, 405, 274, 430]
[A]: [265, 209, 433, 19, 412, 249, 482, 456, 256, 334, 50, 223, 458, 135, 65, 282, 309, 405, 274, 430]

[Q]: [76, 66, 180, 140, 291, 342, 333, 13, 343, 279, 206, 292, 290, 275, 398, 258, 139, 271, 236, 21]
[A]:
[76, 66, 180, 140, 291, 342, 333, 398, 343, 279, 206, 292, 290, 275, 13, 258, 139, 271, 236, 21]