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.

Example Input: [157, 298, 54, 206, 237, 485, 440, 282, 247, 450, 28, 280, 474, 496, 379, 390, 392, 217, 422, 165]
Example Output: [157, 298, 54, 206, 237, 485, 440, 282, 247, 450, 496, 280, 474, 28, 379, 390, 392, 217, 422, 165]

Example Input: [180, 328, 143, 398, 304, 22, 357, 214, 233, 334, 242, 477, 55, 281, 497, 71, 173, 381, 314, 336]
Example Output: [180, 328, 143, 398, 304, 497, 357, 214, 233, 334, 242, 477, 55, 281, 22, 71, 173, 381, 314, 336]

Example Input: [11, 396, 382, 413, 109, 386, 294, 389, 378, 132, 230, 358, 385, 371, 176, 242, 423, 313, 436, 272]
Example Output:
[436, 396, 382, 413, 109, 386, 294, 389, 378, 132, 230, 358, 385, 371, 176, 242, 423, 313, 11, 272]

