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没懂，您能详细讲一下做法吗？In Reply To:Re:是二分不是蒙~~~~~~ Posted by:uni at 2005-04-19 12:24:23 > 不是减半个！是减去整个，如果能有个大于L的段，而且和还能大于0的话，那么这段的平均值肯定大于那个2分的。这题是DODO想出来的，他一说二分平均值我就懂了~~~痛恨自己那么笨~~~ Followed by:
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