find your missing socks / for polina / http://screencast.com/t/EckaqSCJco

missing_socks.rb

system("clear")
socks = Hash.new
puts
puts "To find your missing sock(s) -" 
puts " (1) Enter all of your sock colors/patterns."
puts " (2) Type \"quit\" when done."
puts " (3) Look at the results."
puts
puts

print "Please enter the color/pattern of your first sock: "
color = gets.chomp

while color != "quit"
  if color == "quit" then
    break
  else
    if socks.has_key?(color)
      socks[color] += 1
    else
      socks[color] = 1
    end
    print "Please enter the color/pattern of another sock: "
    color = gets.chomp
  end
end

system("clear")
puts
puts "Your Sock Drawer"
puts "----------------"
socks.each {|k,v| puts "#{k} => #{v}" }
puts
puts "Your Missing Socks"
puts "------------------"
socks.each {|k,v| puts k if v % 2 != 0 }
puts
puts
puts