Daily Coding Problem: Problem #1694 [Medium]

Good morning! Here's your coding interview problem for today.

This problem was asked by Fitbit.

Given a linked list, rearrange the node values such that they appear in alternating low -> high -> low -> high ... form. For example, given 1 -> 2 -> 3 -> 4 -> 5, you should return 1 -> 3 -> 2 -> 5 -> 4.

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