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Language F#
(Recursive implementation)
| Date: | 07/04/09 |
| Author: | Alec Zorab |
| URL: | n/a |
| Comments: | 0 |
| Info: | http://research.microsoft.com/fsharp |
| Score: |  (2.81 in 16 votes) |
//Note that to conform the 100 characters per line rule, two calls to printfn are used
//in each case. As a result, this is slightly more verbose than necessary, but is pretty
let rec bottlesOfBeer = function
0 -> printfn "No more bottles of beer on the wall, no more bottles of beer."
printfn "Go to the store and buy some more, 99 bottles of beer on the wall.\n"
| 1 -> printfn "1 bottle of beer on the wall, 1 bottle of beer."
printfn "Take it down and pass it around, no more bottles of beer on the wall.\n"
bottlesOfBeer 0
| 2 -> printfn "2 bottles of beer on the wall, 2 bottles of beer."
printfn "Take one down, pass it around, 1 bottle of beer on the wall.\n"
bottlesOfBeer 1
| n -> printfn "%d bottles of beer on the wall, %d bottles of beer." n n
printfn "Take one down, pass it around, %d bottles of beer on the wall.\n" (n-1)
bottlesOfBeer (n - 1)
bottlesOfBeer 99
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Alternative Versions
| Version | Author | Date | Comments | Rate |
|---|---|---|---|---|
| Using list comprehension | Jörn Rönnow | 02/01/09 | 3 | |
| Cleaner still | Don Syme | 12/07/06 | 0 | |
| Tail Recursion Call | Simon Kang | 06/22/09 | 0 | |
| lists and lambda's | Kyle Eppley | 05/04/10 | 0 | |
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