Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A good book for those who has a solid understanding of C++

I am using it for self-study on data structure. I found that it is well written in explaning the data structure. It follows the common logics. But you have to know about object orieted programming using C++ very well in order to understand it. I recommend it as a fundmental level reference or text book for the topic of data structure.