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leetcode-problemset/leetcode-cn/problem (Chinese)/消失的两个数字 [missing-two-lcci].html
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<p>给定一个数组,包含从 1 到 N 所有的整数,但其中缺了两个数字。你能在 O(N) 时间内只用 O(1) 的空间找到它们吗?</p>
<p>以任意顺序返回这两个数字均可。</p>
<p><strong>示例 1</strong></p>
<pre>
<strong>输入:</strong><code>[1]</code>
<strong>输出:</strong>[2,3]</pre>
<p><strong>示例 2</strong></p>
<pre>
<strong>输入:</strong><code>[2,3]</code>
<strong>输出:</strong>[1,4]</pre>
<p><strong>提示:</strong></p>
<ul>
<li><code>nums.length &lt;=&nbsp;30000</code></li>
</ul>