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In the past I've primarily used two sources as reference material while implementing AVL trees: the example in Mastering Algorithms with Perl from O'Reilly, and Robert Sedgewick's description of the implementation from his book Algorithms. Both of thes

Pattern132 is an interesting problem I've seen floating around on various message boards. It is a constraint satisfaction problem that I've seen all manner of solutions for ranging from dynamic programming, to straight brute force iteration. When I fir

Having covered Kruskal's MST algorithm in my last article, it seems only natural to now cover Prim's MST algorithm. Prim's algorithm is another Greedy Best First Search graph algorithm for finding the minimum spanning tree of a

Functional Programming with Java

Early in my career, I had a lead developer on a project who during code review, much to my chagrin, kept making me re-write what was in my opinion “perfectly good, working code”. To my lead however

Unique Collections

 Knowing that a collection is comprised of unique only items if a very useful thing indeed. It's so useful that this concept is the basis of one of the fundamental data structure: the Set. While this is not the on