Re: Euler problem #20

William James <w_a_x_man@[EMAIL PROTECTED]
> writes Re: Euler problem #20
[..]
> Ruby:

> n = 1
> (2..100).each{|i|  n *= i }

> s = n.to_s
> puts s.reverse.gsub( /.../, '\&,' ).reverse

> sum = 0
> s.split('').each{|c| sum += c.to_i }
> puts sum

Thanks, I hadn't realized that printing the number and parsing
the text output was an obvious solution :-(

That is probably how they do the 2^1000 problem. Just use dc to 
print it to stdout.

-marcel