@[Walnutjuice](/user/1185284) 最终结果强制转换成 `long long`
by zjpwdyf @ 2023-12-18 14:59:50
原因：`floor()` 的返回值是 `double`，而用 `cout` 输出 `double` 会输出一个小数
by zjpwdyf @ 2023-12-18 15:01:02
谢谢@[zjpwdyf](/user/807826) update:[rt](https://www.luogu.com.cn/problem/B3284)
by Walnutjuice @ 2023-12-23 20:48:05
再次update:[rt](https://www.luogu.com.cn/problem/B3824)
by Walnutjuice @ 2023-12-23 20:49:09