The key of a node is always greater than the keys of the nodes in its left sub-tree

节点的键始终大于它左边的子树中的节点的键

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Subtree node is usually referred to as the "left sub-tree" and "the right sub-tree".

通常节点的子树被称作“左子树”和“右子树”。

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Subtree node is usually referred to as the "left sub-tree" and "the right sub-tree".

通常节点的子树被称作“左子树”和“右子树”。

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