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报一个几天前的citadel OA

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拉普拉斯 发表于 2017-11-13 03:33:50 | 显示全部楼层 |阅读模式

2017(10-12月) 码农类 硕士 实习@citadel - 网上海投 - 其他 |Failfresh grad应届毕业生

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citadel大约是十月底在网上海投的,投完就收到了oa,感觉他们家可能是自动发oa的。测试之前有个选项,让选Python或者R,无奈我只对Python稍有些了解,R完全没有接触过。题目也是很偏machine learning的,15道选择题,60min完成。当时拍了几题,供大家参考一下。
1. You have 2 fair coins and one coin with heads on both sides. You pick a coin at random and toss it twice. If it reads heads both times, what is the probability it also reads heads after a third toss?. more info on 1point3acres.com
2. A bag contains 1 fair coin, 2 two-headed coins, and 3 two-tailed coins. Each of the 6 coins is flipped, but the outcomes of 5 of the coins are hidden from you, randomly. If the outcome you see is heads, what is the probability that the fair coin (which may or may not be the coin that was shown to you) landed heads up?
3. You are developing a Python app for big data analytics. In order to speed up some of the processing, u decide to implement some parts in C++ and connect them to Python using the boost :: python library. The C++ code will run in its own thread using a copy of the data, and when finished it will send the outcome as a string to Python via a callback function. U excute the code and get a segmentation fault. Which of the following is the most likely cause of the error?
A.The PythonGIL. 涓浜-涓夊垎-鍦帮紝鐙鍙戝竷
B. A memory conflict between C++ and Python
C. The C++ string outcome that is sent to Python. 涓浜-涓夊垎-鍦帮紝鐙鍙戝竷
D. The Python data that is used in C++. more info on 1point3acres.com
E. None of the above
如果各位觉得有用,麻烦给弹尽粮绝的我赏点米。。。。。
BrightFeather 发表于 2017-11-14 04:44:24 | 显示全部楼层
请问楼主投的是software还是quant?
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 楼主| 拉普拉斯 发表于 2017-11-14 05:09:24 | 显示全部楼层
BrightFeather 发表于 2017-11-14 04:44.1point3acres缃
请问楼主投的是software还是quant?

是software,紫薯紫薯
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