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北京大学《ACM/ICPC大学生程序设计竞赛训练》暑期课面向全球招生!

Re:注意~!~!~!需要注意的数据

Posted by changzhiwin at 2008-07-23 15:25:31 on Problem 1308
In Reply To:注意~!~!~!需要注意的数据 Posted by:xuhanqiu at 2006-08-18 09:48:42
大家特别注意下面这组数据!!!!!!
> 3: 1 2 1 2 0 0 不是树....自己开始一直在这么WA  好郁闷 重复都不行呀~~5555
上面这位大哥说的太好了!!重复边是不行的!

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