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.
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Question: [446, 271, 355, 181, 214, 338, 42, 398, 235, 467, 57, 92, 56, 282, 99, 222, 420, 339, 50, 472]

Answer: [446, 271, 355, 181, 214, 338, 472, 398, 235, 467, 57, 92, 56, 282, 99, 222, 420, 339, 50, 42]

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

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

Question: [492, 388, 498, 400, 55, 351, 371, 182, 125, 231, 174, 60, 227, 398, 237, 143, 324, 252, 358, 209]

Answer:
[492, 388, 55, 400, 498, 351, 371, 182, 125, 231, 174, 60, 227, 398, 237, 143, 324, 252, 358, 209]