From: Gerald Ebberink <g.h.p.ebberink@...>
Date: 2007-01-08T16:25:12+09:00
Subject: Re: Calculating roman numerals

On Wed, 03 Jan 2007 06:35:02 +0900, Shiloh Madsen wrote:

> Ok, I'm having trouble with another exercise in this book. It has
> asked me to write a program that will calculate the old school roman
> numeral value for a given modern number (up to the thousands). To
> clarify, old school roman numerals didn't do the subtraction thing, so
> 4 is IIII, nine is VIIII, etc. I've played around with a few options
> using division, loops and modulus, but can't seem to get my brain
> around the problem...any suggestions?
> 
> Shiloh

Many people have answered, but since I'm a beginner I would like to have
some comments on the following. Which I think is pretty ruby-esque

ans=0
roman="XVIII"
{"X"=>10,"V"=>5,"I"=>1}.each_pair do |letter, number|ans+=roman.count(letter)*number end;ans


Kind regards,
Gerald