ace/demo/docs/ruby.rb
2011-08-16 13:37:50 +02:00

12 lines
No EOL
164 B
Ruby

#!/usr/bin/ruby
# Program to find the factorial of a number
def fact(n)
if n == 0
1
else
n * fact(n-1)
end
end
puts fact(ARGV[0].to_i)