 <li><a href="https://web.stanford.edu/dept/cs_edu/resources/cslib_docs/simpio.html#Function:getLine"><code class="language-c++ highlighter-rouge"><span class="n">getLine</span></code></a>, to read a line of text entered by the user</li>
  <li><a href="https://web.stanford.edu/dept/cs_edu/resources/cslib_docs/strlib.html#Function:stringIsInteger"><code class="language-c++ highlighter-rouge"><span class="n">stringIsInteger</span></code></a>, to confirm a string of digits is valid integer</li>
</ul>

<p>In pa