I got a call from recruiter and was invited for first round of interview in the office. It was problem solving and data structure. The interviewer was not interested in interviewing, he wanted to show his skills. He opened geeksforgeeks in his laptop and pulled out two questions - one mathematical programming and another dynamic programming. While I was attempting the mathematical programming, instead of giving hints, he was solving at his own in his book looking at the solution in geeksforgeeks. Once he finished, he showed me this is how you solve it and asked me to move on to the dynamic programming question. I was able to solve the dynamic programming question but couldn't convince him why I used dynamic programming. He was not ready to listen at all and only wanted me to explain in his terms. Overall it was a pathetic experience. Never expected this from Walmart.