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leetcode-problemset/leetcode-cn/originData/WGki4K.json
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{
"data": {
"question": {
"questionId": "1000233",
"questionFrontendId": "LCR 004",
"categoryTitle": "Algorithms",
"boundTopicId": 910229,
"title": "只出现一次的数字 II",
"titleSlug": "WGki4K",
"content": "<p>English description is not available for the problem. Please switch to Chinese.</p>\n",
"translatedTitle": "只出现一次的数字 II",
"translatedContent": "<p>给你一个整数数组&nbsp;<code>nums</code> ,除某个元素仅出现 <strong>一次</strong> 外,其余每个元素都恰出现 <strong>三次 。</strong>请你找出并返回那个只出现了一次的元素。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1</strong></p>\n\n<pre>\n<strong>输入:</strong>nums = [2,2,3,2]\n<strong>输出:</strong>3\n</pre>\n\n<p><strong>示例 2</strong></p>\n\n<pre>\n<strong>输入:</strong>nums = [0,1,0,1,0,1,100]\n<strong>输出:</strong>100\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= nums.length &lt;= 3 * 10<sup>4</sup></code></li>\n\t<li><code>-2<sup>31</sup> &lt;= nums[i] &lt;= 2<sup>31</sup> - 1</code></li>\n\t<li><code>nums</code> 中,除某个元素仅出现 <strong>一次</strong> 外,其余每个元素都恰出现 <strong>三次</strong></li>\n</ul>\n\n<p>&nbsp;</p>\n\n<p><strong>进阶:</strong>你的算法应该具有线性时间复杂度。 你可以不使用额外空间来实现吗?</p>\n\n<p>&nbsp;</p>\n\n<p><meta charset=\"UTF-8\" />注意:本题与主站 137&nbsp;题相同:<a href=\"https://leetcode-cn.com/problems/single-number-ii/\">https://leetcode-cn.com/problems/single-number-ii/</a></p>\n",
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