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这题因为二分上界wa的是因为 有些点之间开始不直接连通，求了floyd之后联通了且边权>200

Posted by wust_tanyao at 2014-07-30 14:33:12 on Problem 2112 
这题因为二分上界wa的是因为 有些点之间开始不直接连通，求了floyd之后联通了且边权>200
所以二分上界理论上应该开很大很大才够，我是10000过的。
开始还傻布拉几的在floyd之前把最大距离找出来二分。。
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