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27 lines
689 B
HTML
27 lines
689 B
HTML
<p>教学过程中，教练示范一次，学员跟做三次。该过程被混乱剪辑后，记录于数组 <code>actions</code>，其中 <code>actions[i]</code> 表示做出该动作的人员编号。请返回教练的编号。</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>actions = [5, 7, 5, 5]
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<strong>输出：</strong>7
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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>actions = [12, 1, 6, 12, 6, 12, 6]
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<strong>输出：</strong>1
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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>1 <= actions.length <= 10000</code></li>
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<li><code>1 <= actions[i] < 2^31</code></li>
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</ul>
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