def fact(n)
return 1 if n == 0
f = 1
n.downto(1) do |i|
f *= i
end
return f
end
print fact(ARGV[0].to_i), "\n"
def fact(n)
return 1 if n == 0
f = 1
n.downto(1) do |i|
f *= i
end
return f
end
print fact(ARGV[0].to_i), "\n"
::
::
::
