Abstractions; Structural Recursion vs. Accumulators.

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Note: Your solution to the abstraction problem must include a class diagram and complete templates for all classes.

Due Date: Friday, February 8th, 2008 at 11:59 pm.

The solution to this assignment will be posted on the course wiki at https://wiki.ccs.neu.edu/display/CSU213SP08/Home on Saturday --- so you can use it to prepare to the Tuesday's exam.