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Re: Rosetta PGA-TRAM

by Arunbear (Parson)
on May 21, 2012 at 14:37 UTC ( #971630=note: print w/ replies, xml ) Need Help??


in reply to Rosetta PGA-TRAM

A nearly verbatim translation to Ruby:

$rtoa = { :M=>1000, :D=>500, :C=>100, :L=>50, :X=>10, :V=>5, :I=>1 } def roman_to_dec(roman) roman.split(//).map { |c| $rtoa[c.upcase.to_sym] }.reduce { |t, n | +t+n-t%n*2 } end %w[ XLII LXIX mi ].each { |r| puts roman_to_dec r }


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