Meta Developer interview questions

Print out the sum of each row in a binary tree.

Before I get to the question I just want to say that the interviewer had a very thick accent (I'm an international candidate, BTW), and that made it really difficult for me to understand what he wanted me to do. This isn't me being bitter. I'm saying this so that I present a very honest opinion about my interview. That being said, the question wasn't something that can be found online or in most books, I was given 2 functions String recv() and String ReadLine() [ both these DO NOT take arguments]. recv() generates some string (Example:"123\n45\n6789"). ReadLine() should read the string being returned by recv() and print all characters until the first \n. After that it should read the recv() string again and print the next characters until the 2nd \n. Example: recv(): "123\n45\n6789" ReadLine(): "123" //first call of ReadLine ReadLine(): "45" // second call of ReadLine However, the next sequence now doesn't have a \n. So, once the end of the string is hit, the ReadLine() function must call recv() again, and append all characters until it reads a \n. Continuing the above example: ReadLine():6789abcde //Third call of ReadLine recv():"abc"// still no \n...so you must call recv() again recv():"de\n" The commented sections are my explanations (the interviewer didn't give any such things). I've explained the problem as clearly as I can. Unfortunately, the interviewer kept overwriting his examples, and (I have to emphasize this) his accent made it really hard to understand just what he wanted out of this program.