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Posted by 12332112321 at 2008-08-04 19:09:42 on Problem 3360 and last updated at 2008-08-04 19:10:50 
什么情况？
不是一笔画问题啊？
不懂么。。
先搜连通块。。
再判断奇点偶点个数为什么会WA啊？
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