roman_nums with aki

roman_nums.rb

# ORIGINAL CODE (NOT ALTERED)
# def to_roman(num)
#   roman_values = { 'M'=>1000,
#                    'D'=>500,
#                    'C'=>100,
#                    'L'=>50,
#                    'X'=>10,
#                    'V'=>5,
#                    'I'=>1}
#   previous_val = {}
#   translated = ""
#   roman_values.each do |k,v|
#     previous_val = {k => v}
#     if (num.to_s[0] == 4) || (num.to_s[0] == 9)
#       translated << k + previous_val.keys[0]
#     else
#       (num/v).times {translated << k}
#     end
#     num %= v
#   end
#   translated
# end


# def to_roman(num)
#   # roman_values = { 'M'=>1000,
#   #                  'D'=>500,
#   #                  'C'=>100,
#   #                  'L'=>50,
#   #                  'X'=>10,
#   #                  'IX'=>9,
#   #                  'V'=>5,
#   #                  'IV'=>4,
#   #                  'I'=>1}


# end

=begin
PSEUDO
METHOD to_roman take arg integer
  roman_values hash lookup table
  variable roman_string = empty string

  sample_num = 3540

  push_value = num / 1000
  roman_string << "M" * push_value
  sample_num %= 1000

  push_value = num / 100
  roman_string << "C" * push_value
  sample_num %= 100

  push_value = num / 10
  roman_string << "X" * push_value
  sample_num %= 10

  roman_string << "I" * sample_num

  return roman_string

OUTPUT string with roman values


=end



  # translated = ""
  # roman_values.each {|k,v|
  #   (num/v).times {translated << k}
  #   num %= v
  # }
  # translated


  # translated = ""
  # (num/1000).times {translated << "M"}
  # num %= 1000
  # (num/500).times {translated << "D"}
  # num %= 500
  # (num/100).times {translated << "C"}
  # num %= 100
  # (num/50).times {translated << "L"}
  # num %= 50
  # (num/10).times {translated << "X"}
  # num %= 10
  # (num/5).times {translated << "V"}
  # num %= 5
  # (num/1).times {translated << "I"}
  # return translated
  # # Your code here


# Drive code... this should print out trues.

# puts to_roman(1) == "I"
# puts to_roman(3) == "III"
# puts to_roman(6) == "VI"
# puts to_roman(4) == "IV"
# puts to_roman(90) == "XC"
# puts to_roman(49) == "XLIX"


# puts to_roman(1)
# puts to_roman(3)
# puts to_roman(6)
# puts to_roman(4)
# puts to_roman(90)
# puts to_roman(49)


# TODO: what other cases could you add to ensure your to_roman method is working?

 # pseudo code

# create an empty string that we are going to return at the end
# create times loop starting from 1000 down to 1 for each roman numeral value
#

def to_roman(input)
  num = input
  roman_string = ""

  until num < 1000
    num -= 1000
    roman_string << "M"
  end
  until num < 500
    if num >= 900
      roman_string << "CM"
      num -= 900
    else
      roman_string << "D"
      num -= 500
    end
  end
  until num < 100
    if num >= 400
      roman_string << "CD"
      num -= 400
    else
      roman_string << "C"
      num -= 100
    end
  end
  until num < 50
    if num >= 90
      roman_string << "XC"
      num -= 90
    else
      roman_string << "L"
      num -= 50
    end
  end
  until num < 10
    if num >= 40
      roman_string << "XL"
      num -= 40
    else
      roman_string << "X"
      num -= 10
    end
  end
  until num < 5
    if num == 9
      roman_string << "IX"
      num -= 9
    else
      roman_string << "V"
      num -= 5
    end
  end
  until num < 1
    if num == 4
      roman_string << "IV"
      num -= 4
    else
      roman_string << "I"
      num -= 1
    end
  end
  roman_string
end



puts to_roman(1) == "I"
puts to_roman(3) == "III"
puts to_roman(6) == "VI"
puts to_roman(4) == "IV"
puts to_roman(90) == "XC"
puts to_roman(49) == "XLIX"
puts to_roman(1000) == "M"
puts to_roman(924) == "CMXXIV"
puts to_roman(498) == "CDXCVIII"