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好象是IPSC的那个题吧。。。In Reply To:“PSC有一年出了consecutive ones problem，从而引起了选手们对PQ树和平面图判定的关注。”——引自牛人的blog。是说的这个题么......？？ Posted by:palmtenor at 2006-04-03 19:30:12 Followed by: Post your reply here: |
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