Comment by x86x87

The grind you have to go through in a "google style" interview has nothing to do with the actual work you normally do. It's done to show 1) you will do large amounts of boring work without questioning the need for it 2) you got the fundamentals and you know what's there / when using something you can grok what's going on under the covers. Nobody needs to implement a sorting algorithm until they do - the risk of NIH and reinventing the wheel is high. When you do you need to have a good understanding of why