title: When is a red-black tree left leaning?
body: <p>When is a red-black tree left leaning ?
  Does it just mean that on the letf side from the root are more nodes then on the right side?</p>
  <p>I cant really grasp the definition what left leaning really means somewehre I also read that its related to the 2-3-4 Tress.</p>
  <p>Thanks for your help</p>