remove-duplicates-from-sorted-list-ii.md

<p>Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only <em>distinct</em> numbers from the original list.</p>

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

<pre>
<strong>Input:</strong> 1-&gt;2-&gt;3-&gt;3-&gt;4-&gt;4-&gt;5
<strong>Output:</strong> 1-&gt;2-&gt;5
</pre>

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

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