lptr</em>&nbsp;or not.</span></span></p>
<p>5. Why does the <span class="code-chonk">height()</span> function in the previous problem take a node pointer (<span class="code-chonk">Node *root</span>) and not a reference to a pointer (<span class="code-chonk">Node*&amp; root</span>) like so many of our other binary tree functions have taken?</p>
<p><span style="font-size: 10pt;"><strong>Highlight for solution to Problem #5:</strong> <span style="background-color: #ced4d9; color: #ced4d9;">The&nbsp;<em>height(