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leetcode-problemset/leetcode-cn/problem (Chinese)/多数元素 II [majority-element-ii].html

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2022-03-27 20:56:26 +08:00
<p>给定一个大小为&nbsp;<em>n&nbsp;</em>的整数数组,找出其中所有出现超过&nbsp;<code>⌊ n/3 ⌋</code>&nbsp;次的元素。</p>
<p>&nbsp;</p>
<p><strong>示例&nbsp;1</strong></p>
<pre>
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<strong>输入:</strong>nums = [3,2,3]
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<strong>输出:</strong>[3]</pre>
<p><strong>示例 2</strong></p>
<pre>
<strong>输入:</strong>nums = [1]
<strong>输出:</strong>[1]
</pre>
<p><strong>示例 3</strong></p>
<pre>
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<strong>输入:</strong>nums = [1,2]
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<strong>输出:</strong>[1,2]</pre>
<p>&nbsp;</p>
<p><strong>提示:</strong></p>
<ul>
<li><code>1 &lt;= nums.length &lt;= 5 * 10<sup>4</sup></code></li>
<li><code>-10<sup>9</sup> &lt;= nums[i] &lt;= 10<sup>9</sup></code></li>
</ul>
<p>&nbsp;</p>
<p><strong>进阶:</strong>尝试设计时间复杂度为 O(n)、空间复杂度为 O(1)的算法解决此问题。</p>