Biggest to the Back

The heaviest pumpkin rides at the back of the wagon so it doesn't squash the others. 🎃

You get a list of nums (at least one). Swap the biggest value to the LAST position and print the list, comma-separated. (If there's a tie, move the first biggest.)

Example:

Input: nums = [4, 9, 2, 5] Output: 4,5,2,9

The biggest value is 9, sitting at index 1 — swap it with the last position (index 3), giving [4, 5, 2, 9].