title: How do I read and print Binary tree floor by floor?
body: <p>I have a tree structure in C</p>
  
  <pre><code>Node {
     int info;
     Node *left;
     Node *right;
  }
  </code></pre>
  
  <p>A binary tree made from nodes. Now I want to print the tree floor by floor. 
  ex:</p>
  
  <pre><code>1
  2  7
  1  8  7  0
  </code></pre>
  
  <p>How can I do that?</p>