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: [447, 170, 78, 324, 75, 397, 187, 24, 79, 73, 148, 127, 277, 419, 121, 408, 20, 384, 354, 109]
Example Output: [20, 170, 78, 324, 75, 397, 187, 24, 79, 73, 148, 127, 277, 419, 121, 408, 447, 384, 354, 109]

Example Input: [106, 196, 137, 46, 222, 397, 497, 442, 244, 464, 481, 303, 424, 177, 390, 143, 308, 422, 473, 82]
Example Output: [106, 196, 137, 497, 222, 397, 46, 442, 244, 464, 481, 303, 424, 177, 390, 143, 308, 422, 473, 82]

Example Input: [32, 38, 226, 302, 412, 380, 104, 120, 23, 495, 482, 150, 450, 183, 238, 453, 213, 159, 268, 60]
Example Output:
[32, 38, 226, 302, 412, 380, 104, 120, 495, 23, 482, 150, 450, 183, 238, 453, 213, 159, 268, 60]

