The whole process was great up until the last question. I had to parse a string into a double, where the string could be anything like "1 1/2" or "2/5" or "-3". I thought this was a really bad question because it just tests you on how well you can parse a string with several annoying cases. Given enough time I would have gotten this, but it is actually a lot more annoying to write in such a short time span than you think. I went into it expecting a data structure/algorithm question that actually tests how you think, not some ridiculous parsing question.