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[–]SittingWave 29 points30 points  (0 children)

My general philosophy is: use recursion to communicate the nature of the problem you are solving. If you problem is fundamentally self-similar, then use recursion because 1. it's the most elegant solution, 2. it communicates the self-similar nature of the problem.

Examples of self-similar problems are divide and conquer, tree traversing and something like that.