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Here are 9 videos (out of 34) from the Computer Science Fundamentals course that you can find here on my blog. I made these videos to complement the book, and I also added a few things that weren't in the book... but that made me kind of happy.
Here's a tip: pay good attention to tree traversal stuff! I've interviewed at Google 3 times over my career, and the first two featured two tree questions apiece.
Enjoy!