From: Mathieu Bouchard <matju@...>
Date: 2001-03-11T03:15:40+09:00
Subject: [ruby-talk:12388] Re: ...and the challenge

On Sat, 10 Mar 2001, GOTO Kentaro wrote:
> >This takes 0.35 second here.
> On my machine, yours takes 1.15 sec. 
> The following takes 0.55 sec here.

Ok, I also had written the following one. How long does it take over
there? it takes more time to initialize the ruby interpreter, and it takes
more time to print the numbers than to generate them...

        nums=[]
        def foo(x,y,n); while y<=n; yield y; y *= x; end; end
        foo(2,1,n) {|a| foo(3,a,n) {|b| foo(5,b,n) {|c| nums << c }}}
        nums.sort!
        for x in nums do p x end

(oh, btw. Ben's version takes over 3 times longer. i'm now testing with
n=10**30 and using >/dev/null)

matju