Shuffle An Array

June 30, 2020

Today’s exercise comes to us from Leetcode via Reddit:

Given an array consisting of 2n elements in the form
[x1,x2,…,xn,y1,y2,…,yn], return the array in the form [x1,y1,x2,y2,…,xn,yn].

The Reddit poster claims to be new to Scheme and functional programming, and was thinking of a solution using length and list-ref, but couldn’t solve the problem.

Your task is to show the student how to solve the problem. When you are
finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.

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