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Language F#
(Tail Recursion Call)
| Date: | 06/22/09 |
| Author: | Simon Kang |
| URL: | n/a |
| Comments: | 0 |
| Info: | n/a |
| Score: |  (3.00 in 7 votes) |
let rec writeBeerSong n =
let bottleString1 n1 =
match n1 with
| 0 -> "no more bottles of beer"
| 1 -> "1 bottle of beer"
| _ -> n1.ToString() + " bottles of beer"
let bottleString2 n2 =
match n2 with
| 0 -> "No more bottles of beer on the wall"
| _ -> bottleString1 n2 + " on the wall"
printfn "%s, %s" (bottleString2 n) (bottleString1 n)
match n with
| 0 -> printf "Go to the store and buy some more,"
printfn " 99 bottles of beer on the wall."
| _ -> printfn "Take one down and pass it around, %s on the wall.\n"
(bottleString1 (n - 1))
writeBeerSong (n - 1)
writeBeerSong 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 | |
| Recursive implementation | Alec Zorab | 07/04/09 | 0 | |
| lists and lambda's | Kyle Eppley | 05/04/10 | 0 | |
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