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算法题（国外版）/bitwise-and-of-numbers-range.html Normal file
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<p>Given two integers <code>left</code> and <code>right</code> that represent the range <code>[left, right]</code>, return <em>the bitwise AND of all numbers in this range, inclusive</em>.</p>
<p>&nbsp;</p>
<p><strong>Example 1:</strong></p>
<pre>
<strong>Input:</strong> left = 5, right = 7
<strong>Output:</strong> 4
</pre>
<p><strong>Example 2:</strong></p>
<pre>
<strong>Input:</strong> left = 0, right = 0
<strong>Output:</strong> 0
</pre>
<p><strong>Example 3:</strong></p>
<pre>
<strong>Input:</strong> left = 1, right = 2147483647
<strong>Output:</strong> 0
</pre>
<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>0 &lt;= left &lt;= right &lt;= 2<sup>31</sup> - 1</code></li>
</ul>