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请问这题的官方解答也是按座标DP的吗?区域赛的题目范围好像和平时做的有很大的差别啊。平时想都不敢想的复杂度,区域赛中竟然能过的。像今年杭州赛区的D题。

Posted by yygy at 2012-11-14 01:54:13 on Problem 1925


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