Find a short way through given points. This is the travelling salesman problem.
But the solution should be a fast and small function.
This problem needs an update due to changes in scoring system in Cody
Find the sum of all the numbers of the input vector
Implement a ROT13 cipher
Construct a string from letters and counts
Get the elements of diagonal and antidiagonal for any m-by-n matrix
dir with recursive subdirectory search
Generate a random matrix A of (1,-1)
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