 <li>Before writing any <code class="language-c++ highlighter-rouge"><span class="n">merge</span></code> code, we recommend drawing diagrams and tracing the algorithm on different inputs to keep track of all the pointers flying around.</li>
      <li><code class="language-c++ highlighter-rouge"><span class="n">merge</span></code> must be implemented <strong>iteratively</strong>, not recursively.</li>
      <li>Once written, add student tests to confirm <code class="language-c++ highlighter-rouge"><span clas