_string">string</a> functions <code class="language-c++ highlighter-rouge"><span class="n">length</span></code>, <code class="language-c++ highlighter-rouge"><span class="n">substr</span></code>, <code class="language-c++ highlighter-rouge"><span class="n">concat</span></code>, <code class="language-c++ highlighter-rouge"><span class="n">replace</span></code>, etc. will be useful, along with the Stanford-specific string functions in <a href="https://web.stanford.edu/dept/cs_edu/resources/cslib_docs/strlib.h