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key of any node in the subtree rooted at its left child should be less than that of any node in the subtree rooted at its right child.

Posted by fzk at 2007-04-02 20:42:47 on Problem 3214
In Reply To:麻烦具体说一下 Posted by:frkstyc at 2007-04-02 20:34:45
   1                 10
  / \               /  \
 3   6    =====>  (3)   9
/ \ / \           / \  / \
1 4 3 8           1 2 (3) 8

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