diff options
Diffstat (limited to 'sample/fact.rb')
| -rw-r--r-- | sample/fact.rb | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/sample/fact.rb b/sample/fact.rb index 49678bc9d0..9f6ca72ca7 100644 --- a/sample/fact.rb +++ b/sample/fact.rb @@ -1,8 +1,9 @@ def fact(n) - if n == 0 - 1 - else - n * fact(n-1) + return 1 if n == 0 + f = 1 + n.downto(1) do |i| + f *= i end + f end -print fact(ARGV[0].to_i), "\n" +puts fact(ARGV[0].to_i) |