title: #Define VS Variable
body: <p>I cannot understand what is the difference between:</p>
  
  <pre><code>#define WIDTH 10 
  </code></pre>
  
  <p>and </p>
  
  <pre><code>int width = 10;
  </code></pre>
  
  <p>What are the benefits of using the first or the second?</p>