First Interviewer: It seems that he really did not want to be there. I did not hear him when he said, "Are you familiar with diff?" (I heard "liff"). When I said "no," he immediately snapped at me in surprise, as if I were a moron.

As I was writing on the board, he did not allow me to take notes on what he was saying because we "had no time." As a result, I was lost with his instructions (it did not help that he had an accent).

As I tried to add simple comments to clarify arguments on my own code, he also refused to let me write comments, even as a clarifier, and snapped at me when I did not get my run times right.

In the end, he asked if I had any questions, and when I did ask a question, he said, "Oh, actually, I have to go. I can't answer your questions, but someone else will." Very, very unprofessional.

Second Interviewer: Really awesome guy! The question was challenging, and he allowed me to think on my own. I really felt like I was not being rushed and was able to reason through the problem.

Implement diff/Word Splitter.