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            "categoryTitle": "Algorithms",
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            "title": "Missing Number",
            "titleSlug": "missing-number",
            "content": "<p>Given an array <code>nums</code> containing <code>n</code> distinct numbers in the range <code>[0, n]</code>, return <em>the only number in the range that is missing from the array.</em></p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">nums = [3,0,1]</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">2</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p><code>n = 3</code> since there are 3 numbers, so all numbers are in the range <code>[0,3]</code>. 2 is the missing number in the range since it does not appear in <code>nums</code>.</p>\n</div>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">nums = [0,1]</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">2</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p><code>n = 2</code> since there are 2 numbers, so all numbers are in the range <code>[0,2]</code>. 2 is the missing number in the range since it does not appear in <code>nums</code>.</p>\n</div>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">nums = [9,6,4,2,3,5,7,0,1]</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">8</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p><code>n = 9</code> since there are 9 numbers, so all numbers are in the range <code>[0,9]</code>. 8 is the missing number in the range since it does not appear in <code>nums</code>.</p>\n</div>\n\n<div class=\"simple-translate-system-theme\" id=\"simple-translate\">\n<div>\n<div class=\"simple-translate-button isShow\" style=\"background-image: url(&quot;moz-extension://8a9ffb6b-7e69-4e93-aae1-436a1448eff6/icons/512.png&quot;); height: 22px; width: 22px; top: 318px; left: 36px;\">&nbsp;</div>\n\n<div class=\"simple-translate-panel \" style=\"width: 300px; height: 200px; top: 0px; left: 0px; font-size: 13px;\">\n<div class=\"simple-translate-result-wrapper\" style=\"overflow: hidden;\">\n<div class=\"simple-translate-move\" draggable=\"true\">&nbsp;</div>\n\n<div class=\"simple-translate-result-contents\">\n<p class=\"simple-translate-result\" dir=\"auto\">&nbsp;</p>\n\n<p class=\"simple-translate-candidate\" dir=\"auto\">&nbsp;</p>\n</div>\n</div>\n</div>\n</div>\n</div>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>n == nums.length</code></li>\n\t<li><code>1 &lt;= n &lt;= 10<sup>4</sup></code></li>\n\t<li><code>0 &lt;= nums[i] &lt;= n</code></li>\n\t<li>All the numbers of <code>nums</code> are <strong>unique</strong>.</li>\n</ul>\n\n<p>&nbsp;</p>\n<p><strong>Follow up:</strong> Could you implement a solution using only <code>O(1)</code> extra space complexity and <code>O(n)</code> runtime complexity?</p>\n",
            "translatedTitle": "丢失的数字",
            "translatedContent": "<p>给定一个包含 <code>[0, n]</code>&nbsp;中&nbsp;<code>n</code>&nbsp;个数的数组 <code>nums</code> ，找出 <code>[0, n]</code> 这个范围内没有出现在数组中的那个数。</p>\n\n<ul>\n</ul>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<div class=\"example-block\">\n<p><strong>输入：</strong>nums = [3,0,1]</p>\n\n<p><strong>输出：</strong>2</p>\n\n<p><b>解释：</b><code>n = 3</code>，因为有 3 个数字，所以所有的数字都在范围 <code>[0,3]</code> 内。2 是丢失的数字，因为它没有出现在 <code>nums</code> 中。</p>\n</div>\n\n<p><strong>示例 2：</strong></p>\n\n<div class=\"example-block\">\n<p><strong>输入：</strong>nums = [0,1]</p>\n\n<p><strong>输出：</strong>2</p>\n\n<p><b>解释：</b><code>n = 2</code>，因为有 2 个数字，所以所有的数字都在范围 <code>[0,2]</code> 内。2 是丢失的数字，因为它没有出现在 <code>nums</code> 中。</p>\n</div>\n\n<p><strong>示例 3：</strong></p>\n\n<div class=\"example-block\">\n<p><strong>输入：</strong>nums = [9,6,4,2,3,5,7,0,1]</p>\n\n<p><strong>输出：</strong>8</p>\n\n<p><b>解释：</b><code>n = 9</code>，因为有 9 个数字，所以所有的数字都在范围 <code>[0,9]</code> 内。8 是丢失的数字，因为它没有出现在 <code>nums</code> 中。</p>\n</div>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>n == nums.length</code></li>\n\t<li><code>1 &lt;= n &lt;= 10<sup>4</sup></code></li>\n\t<li><code>0 &lt;= nums[i] &lt;= n</code></li>\n\t<li><code>nums</code> 中的所有数字都 <strong>独一无二</strong></li>\n</ul>\n\n<p>&nbsp;</p>\n\n<p><strong>进阶：</strong>你能否实现线性时间复杂度、仅使用额外常数空间的算法解决此问题?</p>\n",
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