=begin Inspired by Mircea Denis Arabian to roman number converter By Lars I. Lines of Code: 47 Spelling of Apostrophus is to be coded =end #============================================================= #def convert(num) #COMMENT for own input def convert() #COMMENT for a random number between 1 and 3999 =begin In: arabian number as string Out: converted roman number =end #Section - Code #Section - Declarations rom = "" #will contain the converted number val = {0..3 => "I", 4..8 => "V", 9 => "XI"} num = 1 + rand(3999) #COMMENT for a random number between 1 and 3999 #Section - Making an array out of num and reversing it in place num_arr = num.to_s.each_char.map(&:to_i) num_arr.reverse! #to have the ones first and the thousands at the end #Section - Converting to roman number if num > 3999 || num < 1 puts "Enter a valid number between 1 and 3999.Try again!" else for i in 0..3 #Switching to tens, hundreds and thousands case i when 1 val[0..3] = "X" val[4..8] = "L" val[9] = "CX" #9 is reverse because of reverse! in the output when 2 val[0..3] = "C" val[4..8] = "D" val[9] = "MC" #9 is reverse because of reverse! in the output when 3 val[0..3] = "M" val.delete(4..8) val.delete(9) end case num_arr[i] when 0..3 num_arr[i].times do rom << "#{val[0..3]}" end when 4..8 if num_arr[i] - 5 < 0 rom << "#{val[4..8]}" rom << "#{val[0..3]}" else ((num_arr[i] - 5).abs).times do rom << "#{val[0..3]}" end rom << "#{val[4..8]}" end when 9 rom << "#{val[num_arr[i]]}" end end end #Section - Output puts "Arabian number: #{num} \nRoman number: #{rom.reverse!}" end #============================================================= #ara = gets.to_i #COMMENT for own input #convert(ara) #COMMENT for own input convert() #COMMENT for a random number between 1 and 3999

Arabian to roman numbers