1) Discuss your approach as many times as possible. 2) Don’t start Coding the problem until the interviewer asks you to do it. 3) Tell everything that you are thinking about the problem. They are more interested in knowing how you are approaching the problem. 4) Asks for hints if you are stuck up. They will help you. 5) If you don’t know answer to a question then please say it directly. It will save time for other questions. 6) First be confident about your approach then only code it.