Obviously simplicity wasn't the goal of this, so don't judge me.
Created
November 15, 2012 16:53
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Fizzbuzz Rube Goldburg
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| #!/usr/bin/env escript | |
| %% -*- erlang -*- | |
| %%! -smp enable -sname factorial -mnesia debug verbose | |
| %% | |
| %% "Write a program that prints the numbers from 1 to 100. But for | |
| %% multiples of three print “Fizz” instead of the number and for the | |
| %% multiples of five print “Buzz”. For numbers which are multiples of | |
| %% both three and five print “FizzBuzz”." | |
| %% http://c2.com/cgi/wiki?FizzBuzzTest | |
| %% | |
| main([]) -> | |
| PrinterPid = spawn(fun() -> | |
| printer_loop() | |
| end), | |
| spawn_workers(PrinterPid, 100). | |
| printer_loop() -> | |
| receive | |
| {print, I, FizzBuzz} -> | |
| io:format( | |
| "~s~n", | |
| [ | |
| format_fizzbuzz(I, FizzBuzz) | |
| ]) | |
| end, | |
| printer_loop(). | |
| spawn_workers(PrinterPid, Workers) -> | |
| spawn_workers(PrinterPid, Workers, Workers). | |
| spawn_workers(_, _, -1) -> | |
| ok; | |
| spawn_workers(PrinterPid, Workers, N) -> | |
| I = Workers - N, | |
| spawn(fun() -> | |
| worker(PrinterPid, I+1) | |
| end), | |
| spawn_workers(PrinterPid, Workers, N-1). | |
| worker(PrinterPid, I) -> | |
| PrinterPid ! {print, I, fizzbuzz(I)}, | |
| ok. | |
| fizzbuzz(I) when I rem 3 == 0, I rem 5 == 0 -> | |
| "FizzBuzz"; | |
| fizzbuzz(I) when I rem 3 == 0 -> | |
| "Fizz"; | |
| fizzbuzz(I) when I rem 5 == 0 -> | |
| "Buzz"; | |
| fizzbuzz(_) -> | |
| "". | |
| -spec format_fizzbuzz(integer(), iolist()) -> iolist(). | |
| format_fizzbuzz(I, "") -> | |
| integer_to_list(I); | |
| format_fizzbuzz(I, FizzBuzz) -> | |
| FizzBuzz. |
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