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更新国内版力扣题目描述变更
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<p>Write an algorithm to find the "next" node (i.e., in-order successor) of a given node in a binary search tree.</p>
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<p>Return <code>null</code> if there's no "next" node for the given node.</p>
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<p><strong>Example 1:</strong></p>
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<pre>
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<strong>Input:</strong> root = <code>[2,1,3], p = 1
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2
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/ \
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1 3
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</code>
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<strong>Output:</strong> 2</pre>
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<p><strong>Example 2:</strong></p>
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<pre>
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<strong>Input:</strong> root = <code>[5,3,6,2,4,null,null,1], p = 6
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5
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/ \
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3 6
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/ \
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2 4
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/
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1
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</code>
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<strong>Output:</strong> null</pre>
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<p>Write an algorithm to find the "next" node (i.e., in-order successor) of a given node in a binary search tree.</p>
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<p>Return <code>null</code> if there's no "next" node for the given node.</p>
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<p><strong>Example 1:</strong></p>
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<pre>
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<strong>Input:</strong> root = <code>[2,1,3], p = 1
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2
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/ \
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1 3
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</code>
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<strong>Output:</strong> 2</pre>
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