I went to the career fair at my university and after answering one technical question for them, then I got scheduled for an on campus interview. the question at the career fair was reverse a string in C, but it could also be in java, however they gave me C because I said I could do C. anyways, I went into the interview, first they just ask some basic things about stuff on your resume, then comes the technical questions: 1. given an array of numbers, find the best time to buy and sell that will give you the largest profit, and that buy has to come before sell. I did it first time with 2 for loops and just finding the largest difference, but they want it faster, and I screw up on that part since I didn't remember the things that I could use in programming like maps and tree stuff. anyways, the solution was use a map and just map when to buy to when to sell and another map for when to buy to largest difference. so you can easily know when to buy and sell. 2. just some basic stuff on C memory structures like whether the passed in value is at stack or heap type of things.