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]: [194, 357, 428, 137, 258, 406, 376, 68, 190, 99, 449, 220, 52, 340, 432, 88, 112, 40, 39, 326]
[A]: [194, 357, 428, 137, 258, 406, 376, 68, 190, 99, 39, 220, 52, 340, 432, 88, 112, 40, 449, 326]


[Q]: [295, 472, 330, 159, 456, 461, 471, 120, 77, 256, 378, 313, 284, 286, 442, 50, 422, 187, 350, 324]
[A]: [295, 50, 330, 159, 456, 461, 471, 120, 77, 256, 378, 313, 284, 286, 442, 472, 422, 187, 350, 324]


[Q]: [176, 172, 188, 385, 356, 24, 104, 497, 330, 222, 270, 266, 427, 182, 492, 224, 249, 470, 58, 391]
[A]:
[176, 172, 188, 385, 356, 497, 104, 24, 330, 222, 270, 266, 427, 182, 492, 224, 249, 470, 58, 391]