样例过了,但是0分,为啥....

P1927 防护伞

![](https://cdn.luogu.com.cn/upload/pic/2212.png)
by Misaka19238 @ 2017-03-08 12:07:56


@[a216132997\_x](/space/show?uid=31752) 图挂了看不到orz
by CforChan @ 2017-03-08 17:06:22


@[CforChan](/space/show?uid=34792) 我用M\_PI,0分,用题目给的3.1415926535就AC了
by BlueArc @ 2017-03-28 12:46:57


精度问题? 其实可以省去开方这一步的
by Ice_teapoy @ 2017-08-08 14:52:30


不是没有PI吗
by 盐汽水泡面 @ 2017-08-23 16:31:09


min 不够大
by mt19337 @ 2017-09-01 12:21:11


j从1开始试试
by 小小二逼兽 @ 2018-07-22 10:26:42


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