1. All sorting algorithm 2. How to store data type into heap and stack 3. Design principles and cross questions on that 4. Singleton pattern and cross questions 5. Write a program to find an integer which is not present into the second arrays from first array? 6. Complexity of execution of program 7. Complexity of hashing 8. If a person has 2 child and one is boy then what is the probability of 2nd child is boy ?