Thanks for the fun problem!
So compact! I didn't know about arrayfun and cellfun. Very useful functions.
Took a couple of tries, but I got it! :)
Select every other element of a vector
Distance walked 1D
Vectorize the digits of an Integer
convert matrix to single column
Sum the 'edge' values of a matrix
String Array Basics, Part 4: Convert String Array with Missing Values to Cell Array
Toeplitize a matrix
The Top 5 Primes
Fast 1-D Convolution (full shape)
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