ere are corrected versions of the code:</p>

<div class="language-c++ highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="c1">// solution 1</span>
<span class="kt">void</span> <span class="nf">deduplicate</span><span class="p">(</span><span class="n">Vector</span><span class="o">&lt;</span><span class="n">string</span><span class="o">&gt;&amp;</span> <span class="n">vec</span><span class="p">)</span> <span class="p">{</span>
    <span class="k">for</span> <span class="p">(</s