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Solution: Rearrange Sorted List in Max/Min Form

Explore how to rearrange a sorted list so that elements alternate between the largest and smallest values. Learn two efficient approaches: creating a new list and using in-place encoding with modulus and two pointers. Understand the algorithm's steps, constraints, and complexity for coding interviews.

Statement

We're given a sorted list, nums, containing positive integers only. We have to rearrange the list so that when returned, the 0th0^{th} index of the list will have the largest number, the 1st1^{st} index will have the smallest number, the 2nd2^{nd} index will have the second largest number, the 3rd3^{rd} index will have the second smallest number, and so on.

In the end, we’ll have the largest remaining numbers in descending order and the smallest in ascending order at even and odd positions, respectively.

Constraints:

  • 00 \leq nums.length 103\leq 10^3 ...