新鲜HRT algo dev电面

请你post rd2 问题?

added rice

hfpt2020 发表于 2021-3-15 05:31
请你post rd2 问题?

added rice

最近太忙了，过阵子我再po上来哈

xx西瓜 发表于 2021-3-16 06:57
最近太忙了，过阵子我再po上来哈

谢谢. 问题是和在过去一样的吗?

第二题是21， 无关吗?

hfpt2020 发表于 2021-3-3 13:10
4) lim_{n->inf} 1/1 + 1/2! + 1/3! + ... + 1/n! = e
5) if X_1 = \sup{heights}  => E[N] = inf

能解释一下第四题吗？

BrightFeather 发表于 2021-3-27 05:07
能解释一下第四题吗？

Apply the tail sum formula. E[X] = \sumP(X > i). Here P(X>i) = 1/i!. The reason is that consider you generated first i points. The only ordering that does not terminate the process within i step is the strictly increasing one. There are i! orderings and only one of them result in the process proceed to i+i step.

请问楼主一面之后几天会出结果呀

请问第一题是2/3 吧？ 看到另一个帖子 https://www.1point3acres.com/bbs/thread-791979-1-1.html 说面试官给的答案是1/3有点无法理解。谢谢。