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.

[447, 60, 249, 247, 486, 14, 193, 173, 451, 144, 12, 405, 308, 202, 132, 65, 160, 184, 348, 203]
[447, 60, 249, 247, 12, 14, 193, 173, 451, 144, 486, 405, 308, 202, 132, 65, 160, 184, 348, 203]

[383, 310, 136, 63, 432, 287, 124, 203, 359, 221, 423, 493, 265, 363, 146, 76, 210, 48, 32, 119]
[383, 310, 136, 63, 432, 287, 124, 203, 359, 221, 423, 32, 265, 363, 146, 76, 210, 48, 493, 119]

[206, 36, 371, 116, 91, 285, 177, 162, 283, 67, 164, 123, 436, 170, 196, 213, 385, 205, 431, 268]

[206, 436, 371, 116, 91, 285, 177, 162, 283, 67, 164, 123, 36, 170, 196, 213, 385, 205, 431, 268]