有两个点没过QAQ
by 小风扇vv @ 2018-10-18 22:20:29
```cpp
answer=(double)(ans)/n;
```
直接把ans开成double就好了
亲测 已a
by 氢氧化钙、 @ 2018-10-18 23:14:07
@[小风扇vv](/space/show?uid=22097)
by 氢氧化钙、 @ 2018-10-18 23:14:25
@[氢氧化钙、](/space/show?uid=40997) 谢谢(*°∀°)=3！！orz！！
by 小风扇vv @ 2018-10-19 00:40:49