add-two-numbers.md

<p>You are given two <b>non-empty</b> linked lists representing two non-negative integers. The digits are stored in <b>reverse order</b> and each of their nodes contain a single digit. Add the two numbers and return it as a linked list.</p>

<p>You may assume the two numbers do not contain any leading zero, except the number 0 itself.</p>

<p><b>Example:</b></p>

<pre>
<b>Input:</b> (2 -&gt; 4 -&gt; 3) + (5 -&gt; 6 -&gt; 4)
<b>Output:</b> 7 -&gt; 0 -&gt; 8
<b>Explanation:</b> 342 + 465 = 807.
</pre>