arab_to_roman.rb

#Maybe it's not the way you would do it in ruby and code is not that 
#beautiful and everyone knows how to read file line by line and how to make 
#validation of inputs and how to use methods, global and local variables
#but I am sure my idea is genuis. Engoy


class Test
	
	str=ARGV[0]
	
	l = ARGV[0].length
	n=Integer(ARGV[0])
	
	#inicializuvaty zminn

	table = {"1"=>"I", "5"=>"V", "10"=>"X", "50"=>"L", "100"=>"C", "500"=>"L", "1000"=>"M"}
	count = 1
	while count <= l
		i=l-count
		num=Integer(str[i])
		k = l-i
		if k==1
			x = 1 ;	y = String"V";	z = String"X" end
			if k==2 
				x = 10; y = String"L"; z = String"C"; end
				if k==3 
					x = 100 ; y = String"D"; z = String"M" end
					if k==4
						x = 1000; String"O"; z = String"O" 	end	
			
		if num!=0
		
			inum = num*x
			delta = inum - 5*x
			
			if (delta < -1*x && delta > -4*x )
				c = inum/(1*x)
				while c > 0
					d = 1*x
					roman = table["#{d}"]
					puts "#{roman}"
					c=c-1
					end
				end
			if (delta > 1*x && delta < 4*x) 
				c = delta/(1*x)
				puts y
				while c > 0
					d = 1*x
					roman = table["#{d}"]
					puts "#{roman}"
					c=c-1
					end
				end	
				
				if (delta == 1*x)
					d = 1*x
					roman = table["#{d}"]
					puts "#{y}#{roman}"
					end
					
				if (delta ==-1*x)
					d = 1*x
					roman = table["#{d}"]
					puts "#{roman}#{y}"
					end
					
				if (delta == 0)
					puts "#{y}"
					end				
			
				if (delta >= 4*x)
					d = 1*x
					roman = table["#{d}"]
					puts "#{roman}#{z}"
					end
				
				if (delta == -4*x)
					d = 1*x
					cons = table["#{d}"]
					puts "#{cons}"
					end
			end
				count = count + 1
				
		end	
			puts "Read from the bottom to the top :)). Who needs an easy and obvious way...."
end

roman_to_arab.rb

class Romanian

 table ={"I"=>"1", "V"=>"5", "X"=>"10", "L"=>"50", "C"=>"100", "D"=>"500", "M"=>"1000"}
 l=ARGV[0].length
 str = ARGV[0]


 sum = 0
 i = 0
 if (l!=1)
	while i < l
		curr = str[i]
		nextt = str[i+1]
			arabic_current = Integer(table["#{curr}"])
			if (i!=l-1)
				arabic_next =  Integer(table["#{nextt}"])
				else 
				arabic_next = 0
				end
		if (arabic_current >= arabic_next)
			sum = sum + arabic_current			
			else
				puts "f"
				sum = sum - arabic_current
			end
		i= i + 1
	end
 else
 		curr = str[l-1]
 		arabic_current = Integer(table["#{curr}"])
		sum = arabic_current + sum 
 end
	puts "#{str} - > #{sum}"
 end