Given a pathname string, return a condensed version by replacing intermediate folders with '..'.
fullpath = 'C:\foo\bar\baz\qux';
shortpath = 'C:\..\qux';
Additional test cases have been added.
Find common elements in matrix rows
Project Euler: Problem 10, Sum of Primes
Max index of 3D array
Swap two numbers
Determine which fields have been modified in a structure
Triangular matrices in 3D array
Calculate the Hamming distance between two strings
Find mistyped words in text (mixed-up letters)
Calculate a modified Levenshtein distance between two strings
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