title: int** a = new int*[n](); What does this function do?
body: <pre class="lang-cpp prettyprint-override"><code>int** a = new int*[n]();
  </code></pre>
  
  <p>I can't find any explanation for this code, all I find is explanations for code like  <code>int *array = new int[n];</code>. I understand it but I can't completely figure out the code above. What does it mean?</p>