Math :1. 400 people in a room . what is the probability that two people have the same birthday. 2.Harmonic series. Prog (Java,C,C++) : 1.Difference between classpath and path 2. void pointer. 3.pointers 4. how would you pass a pointer. 5. inline function 6.diff between #Define and constant int 7.write a function to find whether a number is even or not. 8. #include 9. can structures have functions inside them . can classes have functions inside them. 10. OOPs 11. Polymorphism and give one example. 12. How to have an instance of a class if the constructor is private? 13. If class foo has private data types and private methods only . Class Bar inherits from Class Foo . How can u access the data types. 14.JDK and JRE 15. what is a directed graph and undirected graph 16.Local and global scope? 17. Big-O 18. Hashtable 19.Time complexity of Brute force and explain how did u get that. 20. (AUB) intersection C. expand