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<p>给你一个长度为 <code>n</code> 的整数数组 <code>nums</code> ,返回使所有数组元素相等需要的最小操作数。</p>
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<p>在一次操作中,你可以使数组中的一个元素加 <code>1</code> 或者减 <code>1</code> 。</p>
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<p> </p>
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<p><strong>示例 1:</strong></p>
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<pre>
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<strong>输入:</strong>nums = [1,2,3]
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<strong>输出:</strong>2
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<strong>解释:</strong>
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只需要两次操作(每次操作指南使一个元素加 1 或减 1):
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[<strong><em>1</em></strong>,2,3] => [2,2,<strong><em>3</em></strong>] => [2,2,2]
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</pre>
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<p><strong>示例 2:</strong></p>
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<pre>
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<strong>输入:</strong>nums = [1,10,2,9]
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<strong>输出:</strong>16
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</pre>
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<p> </p>
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<p><strong>提示:</strong></p>
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<ul>
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<li><code>n == nums.length</code></li>
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<li><code>1 <= nums.length <= 10<sup>5</sup></code></li>
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<li><code>-10<sup>9</sup> <= nums[i] <= 10<sup>9</sup></code></li>
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</ul>
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