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同感,曾经用4叉树求面积,结果TLE

Posted by atlas_of_rruucc at 2005-01-01 19:15:22 on Problem 2155
In Reply To:四叉树没用的。每维分别线段树再组合成(n*2)*(n*2)个状态……不会解释了…… Posted by:xreborner at 2004-12-26 22:07:12


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