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
Solve the Sudoku Row
Solve the set of simultaneous linear equations
Replicate elements in vectors
Too Many Zeros, Dump Them!
Code breaker, Part II: Operation Orthos
Rate of event occurence: find percentiles of the distribution (for smallish rates)
Make your own Test Suite (part 2)
Wait a second!
What score did they give?
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