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.

[266, 446, 112, 116, 14, 309, 407, 256, 27, 109, 13, 118, 448, 412, 135, 288, 270, 158, 189, 75]
[266, 446, 112, 116, 14, 309, 407, 256, 27, 109, 448, 118, 13, 412, 135, 288, 270, 158, 189, 75]

[224, 386, 364, 432, 468, 46, 205, 257, 308, 388, 261, 73, 402, 291, 403, 165, 147, 276, 222, 111]
[224, 386, 364, 432, 46, 468, 205, 257, 308, 388, 261, 73, 402, 291, 403, 165, 147, 276, 222, 111]

[175, 226, 366, 453, 182, 275, 23, 361, 118, 387, 90, 312, 310, 227, 404, 230, 337, 111, 66, 420]

[175, 226, 366, 23, 182, 275, 453, 361, 118, 387, 90, 312, 310, 227, 404, 230, 337, 111, 66, 420]