Have you ever wonder how bit masking work (or what is that?) and why do you need it? Or why a tree structure exists? (or what is breadth first vs depth first), or what are game trees? We put our Computer Science hat and go "depth first" in some fundamental compsci concepts, and, more importantly their utility, ending with Game trees (and they are not only used for games)!
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Steve Yegge Blog (Get that job at Google!)
Jeff Atwood Blog(Why Can't Programmers.. Program?)
Bitwise Operations in Java
Binary Trees
Tree Parsing and Evaluation example
Game Trees

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