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22 lines
1.0 KiB
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<p>You have a set of integers <code>s</code>, which originally contains all the numbers from <code>1</code> to <code>n</code>. Unfortunately, due to some error, one of the numbers in <code>s</code> got duplicated to another number in the set, which results in <strong>repetition of one</strong> number and <strong>loss of another</strong> number.</p>
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<p>You are given an integer array <code>nums</code> representing the data status of this set after the error.</p>
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<p>Find the number that occurs twice and the number that is missing and return <em>them in the form of an array</em>.</p>
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<p> </p>
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<p><strong>Example 1:</strong></p>
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<pre><strong>Input:</strong> nums = [1,2,2,4]
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<strong>Output:</strong> [2,3]
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</pre><p><strong>Example 2:</strong></p>
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<pre><strong>Input:</strong> nums = [1,1]
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<strong>Output:</strong> [1,2]
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</pre>
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<p> </p>
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<p><strong>Constraints:</strong></p>
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<ul>
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<li><code>2 <= nums.length <= 10<sup>4</sup></code></li>
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<li><code>1 <= nums[i] <= 10<sup>4</sup></code></li>
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</ul>
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