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Re:这题答案好像不是唯一的吧......

Posted by Lerry at 2008-03-29 15:45:03 on Problem 1577
In Reply To:这题答案好像不是唯一的吧...... Posted by:xiaobai1 at 2008-02-03 14:07:06
其实还有个条件:binary search tree....

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