Mathwork EDG全职 OA

本来想投实习的，不小心投错了成全职了，也就做了……
五道数学，两道coding
数学：
1. Probability for a ball Selection: a bag has 3 white balls and 5 black balls. take two draws randomly, ask for the probability in second drawing with white ball (这里白球改成了黑球) 20/56
2. Cycle-Free Graph: A graph have N vertices. What is the maximum number of edges it can have so that the undirected graph is cycle-free? Answer: N-1.
3. 口袋 A 有 1 个蓝球 4 个黄球，B 有 3 个蓝球 2 个黄球，随机拿一个球，问一直 是蓝色球的情况下，球从 A 口袋里面出来的概率有多大? Answer: 1/4.
4. 还有一道题是从 1st ave，121 street 走到 2ed ave，1 street，哪里掉东西概率最 大? Answer 2ed ave，42
5. -5, -8, -11... 101th number is? -305

coding:
Merge String原题.

Office layout problem 不知道是不是原题，面经没见过，leetcode上有解答

求加米 ➕米

分都加在这里。抱歉之前误判。

admin 发表于 2020/02/19 10:27:05
分都加在这里。抱歉之前误判。

感谢感谢，也是因为在找实习很需要面经