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+<h2><a href="https://leetcode.com/problems/longest-common-prefix/">14. Longest Common Prefix</a></h2><h3>Easy</h3><hr><div><p>Write a function to find the longest common prefix string amongst an array of strings.</p>
+
+<p>If there is no common prefix, return an empty string <code>""</code>.</p>
+
+<p>&nbsp;</p>
+<p><strong>Example 1:</strong></p>
+
+<pre><strong>Input:</strong> strs = ["flower","flow","flight"]
+<strong>Output:</strong> "fl"
+</pre>
+
+<p><strong>Example 2:</strong></p>
+
+<pre><strong>Input:</strong> strs = ["dog","racecar","car"]
+<strong>Output:</strong> ""
+<strong>Explanation:</strong> There is no common prefix among the input strings.
+</pre>
+
+<p>&nbsp;</p>
+<p><strong>Constraints:</strong></p>
+
+<ul>
+	<li><code>1 &lt;= strs.length &lt;= 200</code></li>
+	<li><code>0 &lt;= strs[i].length &lt;= 200</code></li>
+	<li><code>strs[i]</code> consists of only lowercase English letters.</li>
+</ul>
+</div>