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Wednesday, September 28, 2011

贡献一些面试题(GS,BarCap,Credit Suisse,etc.)

拿到offer,把面试过程中遇到的一些题贡献出来。我申请的主要是risk,偶尔有quant
strats。

C++及编程:
1)what is an object? difference between object and class;
2) difference between pointer and reference;
3) what is static variable? static function?
4) 一些片断挑错题;
5) 计算factorial;
6) 识别prime number;
7) 写一个程序从一本书里挑出有特定字母的词语。

数学、统计、brainteaser:
1) 有一个直径已知的圆,从圆周上随机挑两个点,问平均距离多少;
2) 什么是central limit theorem,假设是什么?
3) 讲出一个var=无穷的distribution,写出一个var=无穷的distribution的density 
function;
4) 假设有一张圆桌子,你和面试官轮流放硬币上去。硬币不能重叠放,也不能有一部
分悬空。放下最后一个硬币的人就赢了。问怎样放才能稳赢;
5) 100!有多少位数?

金融、金融数学:
1) 什么是VaR?如何计算?
2) OU process的各种性质;
3) 如何导出BS PDE?
4) 证明各种process是否martingale;martingale hits boundary的问题;
5) Local volatility model,stochastic volatility model及smile;
6) 近期时事。

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