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.

[55, 409, 435, 374, 277, 460, 418, 43, 450, 399, 210, 260, 178, 289, 57, 262, 495, 499, 112, 26]
[55, 409, 435, 374, 277, 460, 418, 43, 450, 399, 210, 260, 178, 289, 57, 262, 495, 26, 112, 499]

[162, 27, 140, 274, 414, 376, 104, 159, 418, 155, 493, 151, 422, 335, 187, 292, 217, 31, 248, 84]
[162, 493, 140, 274, 414, 376, 104, 159, 418, 155, 27, 151, 422, 335, 187, 292, 217, 31, 248, 84]

[243, 171, 26, 446, 109, 477, 285, 67, 193, 123, 335, 288, 357, 135, 51, 464, 257, 447, 208, 240]

[243, 171, 477, 446, 109, 26, 285, 67, 193, 123, 335, 288, 357, 135, 51, 464, 257, 447, 208, 240]

