It would be good if Cody penalized huge strings. :)
Solution uses regexprep with dynamic operators for the replacement expression which outsmarts Cody's size calculation.
This is just silly. It's gaming the Matlab grader, and not doing a particularly good job at that. Why should this stop at 3999?
Very nicely done.
Return the first and last character of a string
Max index of 3D array
Swap two numbers
Side of an equilateral triangle
Extra safe primes
Extract leading non-zero digit
Which doors are open?
Remove all the consonants
Find the peak 3n+1 sequence value
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