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.

[EX Q]: [243, 312, 181, 499, 87, 173, 341, 443, 203, 314, 47, 198, 152, 41, 208, 184, 274, 437, 26, 226]
[EX A]: [243, 312, 181, 26, 87, 173, 341, 443, 203, 314, 47, 198, 152, 41, 208, 184, 274, 437, 499, 226]

[EX Q]: [221, 493, 17, 466, 353, 191, 141, 343, 347, 247, 78, 110, 342, 228, 492, 392, 61, 106, 104, 113]
[EX A]: [221, 17, 493, 466, 353, 191, 141, 343, 347, 247, 78, 110, 342, 228, 492, 392, 61, 106, 104, 113]

[EX Q]: [68, 435, 375, 284, 153, 300, 34, 85, 196, 473, 150, 345, 17, 197, 319, 156, 144, 124, 99, 406]
[EX A]:
[68, 435, 375, 284, 153, 300, 34, 85, 196, 17, 150, 345, 473, 197, 319, 156, 144, 124, 99, 406]