leetcode-problemset/leetcode-cn/originData/reverse-bits.json

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        "question": {
            "questionId": "190",
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            "categoryTitle": "Algorithms",
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            "title": "Reverse Bits",
            "titleSlug": "reverse-bits",
            "content": "<p>Reverse bits of a given 32 bits unsigned integer.</p>\n\n<p><strong>Note:</strong></p>\n\n<ul>\n\t<li>Note that in some languages, such as Java, there is no unsigned integer type. In this case, both input and output will be given as a signed integer type. They should not affect your implementation, as the integer&#39;s internal binary representation is the same, whether it is signed or unsigned.</li>\n\t<li>In Java, the compiler represents the signed integers using <a href=\"https://en.wikipedia.org/wiki/Two%27s_complement\" target=\"_blank\">2&#39;s complement notation</a>. Therefore, in <strong class=\"example\">Example 2</strong> above, the input represents the signed integer <code>-3</code> and the output represents the signed integer <code>-1073741825</code>.</li>\n</ul>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> n = 00000010100101000001111010011100\n<strong>Output:</strong>    964176192 (00111001011110000010100101000000)\n<strong>Explanation: </strong>The input binary string <strong>00000010100101000001111010011100</strong> represents the unsigned integer 43261596, so return 964176192 which its binary representation is <strong>00111001011110000010100101000000</strong>.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> n = 11111111111111111111111111111101\n<strong>Output:</strong>   3221225471 (10111111111111111111111111111111)\n<strong>Explanation: </strong>The input binary string <strong>11111111111111111111111111111101</strong> represents the unsigned integer 4294967293, so return 3221225471 which its binary representation is <strong>10111111111111111111111111111111</strong>.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li>The input must be a <strong>binary string</strong> of length <code>32</code></li>\n</ul>\n\n<p>&nbsp;</p>\n<p><strong>Follow up:</strong> If this function is called many times, how would you optimize it?</p>\n",
            "translatedTitle": "颠倒二进制位",
            "translatedContent": "<p>颠倒给定的 32 位无符号整数的二进制位。</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li>请注意，在某些语言（如 Java）中，没有无符号整数类型。在这种情况下，输入和输出都将被指定为有符号整数类型，并且不应影响您的实现，因为无论整数是有符号的还是无符号的，其内部的二进制表示形式都是相同的。</li>\n\t<li>在 Java 中，编译器使用<a href=\"https://baike.baidu.com/item/二进制补码/5295284\" target=\"_blank\">二进制补码</a>记法来表示有符号整数。因此，在 <strong>示例 2</strong>&nbsp;中，输入表示有符号整数 <code>-3</code>，输出表示有符号整数 <code>-1073741825</code>。</li>\n</ul>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>n = 00000010100101000001111010011100\n<strong>输出：</strong>964176192 (00111001011110000010100101000000)\n<strong>解释：</strong>输入的二进制串 <strong>00000010100101000001111010011100 </strong>表示无符号整数<strong> 43261596</strong><strong>，\n    </strong> 因此返回 964176192，其二进制表示形式为 <strong>00111001011110000010100101000000</strong>。</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>n = 11111111111111111111111111111101\n<strong>输出：</strong>3221225471 (10111111111111111111111111111111)\n<strong>解释：</strong>输入的二进制串 <strong>11111111111111111111111111111101</strong> 表示无符号整数 4294967293，\n   &nbsp; 因此返回 3221225471 其二进制表示形式为 <strong>10111111111111111111111111111111 。</strong></pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li>输入是一个长度为 <code>32</code> 的二进制字符串</li>\n</ul>\n\n<p>&nbsp;</p>\n\n<p><strong>进阶</strong>: 如果多次调用这个函数，你将如何优化你的算法？</p>\n",
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