romans.rb

def romans
  {"M" => 1000, "D" => 500, "C" => 100, "L" => 50, "X" => 10, "V" => 5, "I" => 1}
end

def find_next_component(num)
  romans.select { |l, v| v <= num }
    .sort_by { |l, v| v }
    .last
end

def to_roman(num)
  answer = ""
  while num > 0
    current_component = find_next_component(num)

    puts "Next component found: #{current_component}"

    answer = "#{answer}#{current_component.first}"

    puts "The answer so far: #{answer}"

    num -= current_component.last
  end
  answer
end