Grab the book named "Cracking the coding interview". After you've finished with it and done all the coding questions (without cheating) all this crap will be a

Grab the book named "Cracking the coding interview". After you've finished with it and done all the coding questions (without cheating) all this crap will be a breeze for you. Plus you will learn some neat tricks which are invaluable for your day job. When I was planning to interview for a job I've done a research for such books and this was the most useful. Please note that I am not the author of the book nor an affiliate of him.