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But won't that miss the case where there is a right node to a left node to the root that has a value greater than the root, which violates the rule that all nodes to the left of root should be less than root?
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Is This a Binary Search Tree?
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But won't that miss the case where there is a right node to a left node to the root that has a value greater than the root, which violates the rule that all nodes to the left of root should be less than root?