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Re:用凸包做的请看这里！

Posted by litble at 2018-06-12 15:36:54 on Problem 1696
In Reply To:用凸包做的请看这里！ Posted by:AK47biubiubiu at 2017-01-08 20:13:08 
> http://blog.csdn.net/nyist_tc_lyq/article/details/54236282 学识有限，大神勿喷！
忽然明白我的做法错在哪了，太感谢了！
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