未名空间十大: 总结一下我的经历，回报版上。

未名空间十大: 总结一下我的经历，回报版上。

   1. C++的replacement new是咋回事？为啥直接不用类型转换。
        2. 你有一个service，会处理些很expensive的operation，client 会要求
server执行这些operation，问，怎么防止client的 deny of servie 攻击。
        3. sigleton pattern是怎么回事？how to define, why need it and when
to use it;
        4. thread 跟process 的区别
        5. talk about your project; what part are you working on; how to
protect your system from attack;
        6. how to create an object to a specific memory location; what's the
difference with regular new and replacement new; why use replacement new,
not type cast directly;
        7. difference of reference and pointer
        8. difference of class and struct
        9. design problem: distributed server with load balancer, can have
very heavy operations, how to protect it from DOS attack.

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