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author | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 1998-01-16 12:19:22 +0000 |
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committer | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 1998-01-16 12:19:22 +0000 |
commit | fd1d8cdc09ed86e4a0812120a17ff0d7b04adcaf (patch) | |
tree | 341289a84a427f1e92425c7ebf82d2f1733e9a40 /sample/fact.rb | |
parent | f12baed5df6d3c213dd75d2f0d9f36bb179fb843 (diff) |
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/RUBY@11 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'sample/fact.rb')
-rw-r--r-- | sample/fact.rb | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/sample/fact.rb b/sample/fact.rb index 49678bc9d0..1462a6923a 100644 --- a/sample/fact.rb +++ b/sample/fact.rb @@ -1,8 +1,10 @@ def fact(n) - if n == 0 - 1 - else - n * fact(n-1) + return 1 if n == 0 + f = 1 + while n>0 + f *= n + n -= 1 end + return f end print fact(ARGV[0].to_i), "\n" |