FYI: The fastest solution mentioned at the problem description uses a lookup-table. Don't beat yourself too much.
Hello, William. I like very much the originality & especially the efficiency of your approach here. Am I correct in thinking that the existing code would struggle to correctly decode a message that was encoded from (say) "Beware of the Sasquatch Man's involvement in Operation Phoenix"? [I don't want to explain this, to avoid giving too many clues to others. But I hope you get my point.] Although I am confident you could tweak your code (if necessary) to handle such cases. —DIV
Distance walked 1D
Inner product of two vectors
Back to basics 22 - Rotate a matrix
Area of an equilateral triangle
Flip the vector from right to left
Make your own Test Suite (part 0)
Make your own Test Suite (part 1)
Add all the numbers between two limits (inclusive)
Code breaker, Part III: Operation Xiangliu
Back to basics: adding comments to your code
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