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就拿题中的图例来说：W3 = 0（有虫子，不用走），W2 = 0，所以 W3 / L3 = W2 / L2 = 0，那怎么确定先访问哪个。In Reply To:这题排序之后就可以确定子树的顺序,即使是1000叉 Posted by:magic_pig at 2004-12-28 21:46:54 Followed by:
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