leetcode-problemset/算法题（国内版）/problem (English)/最长单词(English) [longest-word-lcci].html

<p>Given a list of words, write a program to find the longest word made of other words in the list. If there are more than one answer, return the one that has smallest lexicographic order. If no answer, return an empty string.</p>

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

<pre>
<strong>Input: </strong> [&quot;cat&quot;,&quot;banana&quot;,&quot;dog&quot;,&quot;nana&quot;,&quot;walk&quot;,&quot;walker&quot;,&quot;dogwalker&quot;]
<strong>Output: </strong> &quot;dogwalker&quot;
<strong>Explanation: </strong> &quot;dogwalker&quot; can be made of &quot;dog&quot; and &quot;walker&quot;.
</pre>

<p><strong>Note: </strong></p>

<ul>
	<li><code>0 &lt;= len(words) &lt;= 200</code></li>
	<li><code>1 &lt;= len(words[i]) &lt;= 100</code></li>
</ul>