remove-duplicates-from-sorted-list.md

<p>Given a sorted linked list, delete all duplicates such that each element appear only <em>once</em>.</p>

<p><strong>Example 1:</strong></p>

<pre>
<strong>Input:</strong> 1-&gt;1-&gt;2
<strong>Output:</strong> 1-&gt;2
</pre>

<p><strong>Example 2:</strong></p>

<pre>
<strong>Input:</strong> 1-&gt;1-&gt;2-&gt;3-&gt;3
<strong>Output:</strong> 1-&gt;2-&gt;3
</pre>