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0139-word-break/README.md

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+<h2><a href="https://leetcode.com/problems/word-break/">139. Word Break</a></h2><h3>Medium</h3><hr><p>Given a string <code>s</code> and a dictionary of strings <code>wordDict</code>, return <code>true</code> if <code>s</code> can be segmented into a space-separated sequence of one or more dictionary words.</p>
+
+<p><strong>Note</strong> that the same word in the dictionary may be reused multiple times in the segmentation.</p>
+
+<p>&nbsp;</p>
+<p><strong class="example">Example 1:</strong></p>
+
+<pre>
+<strong>Input:</strong> s = &quot;leetcode&quot;, wordDict = [&quot;leet&quot;,&quot;code&quot;]
+<strong>Output:</strong> true
+<strong>Explanation:</strong> Return true because &quot;leetcode&quot; can be segmented as &quot;leet code&quot;.
+</pre>
+
+<p><strong class="example">Example 2:</strong></p>
+
+<pre>
+<strong>Input:</strong> s = &quot;applepenapple&quot;, wordDict = [&quot;apple&quot;,&quot;pen&quot;]
+<strong>Output:</strong> true
+<strong>Explanation:</strong> Return true because &quot;applepenapple&quot; can be segmented as &quot;apple pen apple&quot;.
+Note that you are allowed to reuse a dictionary word.
+</pre>
+
+<p><strong class="example">Example 3:</strong></p>
+
+<pre>
+<strong>Input:</strong> s = &quot;catsandog&quot;, wordDict = [&quot;cats&quot;,&quot;dog&quot;,&quot;sand&quot;,&quot;and&quot;,&quot;cat&quot;]
+<strong>Output:</strong> false
+</pre>
+
+<p>&nbsp;</p>
+<p><strong>Constraints:</strong></p>
+
+<ul>
+	<li><code>1 &lt;= s.length &lt;= 300</code></li>
+	<li><code>1 &lt;= wordDict.length &lt;= 1000</code></li>
+	<li><code>1 &lt;= wordDict[i].length &lt;= 20</code></li>
+	<li><code>s</code> and <code>wordDict[i]</code> consist of only lowercase English letters.</li>
+	<li>All the strings of <code>wordDict</code> are <strong>unique</strong>.</li>
+</ul>