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potatogeng | 2015-11-07 09:35:31 | 阅读(0) | 评论(0)
Assume a BST is defined as follows:
The left subtree of a node contains only nodes with keys less than the node's key.
The right subtree of a node contains only nodes with keys greater than the node's key.
Both the left and right subtrees must also be binary search trees.【阅读全文】