Jobs. Amazon. Dynamic-programming. Fun with Project Euler and Scala. Project Euler is a site with mathematical puzzles that can be solved relatively quickly with an efficient algorithm. Randall Munroe (of xkcd fame), used Project Euler to become more acquainted with Python, so I thought I'd give it a shot in Scala. I'll be using the Scala interpreter, which comes with any standard Scala installation. Familiarity with Scala is not necessarily required, as I've attempted to also make this a whirlwind tour of some of Scala's more interesting features: implicit conversions, anonymous functions, anonymous parameters, type inference, lazy evaluation, Pimped Libraries, and sequence comprehensions. I also go through some of the methods in Scala's standard library, particularly for some of the collection classes. I don't attempt to explain all these things in detail, but I've provided links for the curious.
TechInterview - puzzles and interview questions. Arithmetic and Algebra from Interactive Mathematics Miscellany a.