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No_free_lunch_in_search_and_optimization?useskin=vector

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This article is about mathematical analysis of computing. For associated folklore and broad implications of the theorem, see No free lunch theorem. The problem is to rapidly find a solution among candidates a, b, and c that is as good as any other, where goodness is either 0 or 1. There are eight instances ("lunch plates") fxyz of the problem, where x, y, and z indicate the goodness of a, b, and c, respectively. Procedure ("restaurant") A evaluates candidates in the order a, b, c, and B evaluates candidates in reverse that order, but each "charges" 1 evaluation in 5 cases, 2 evaluations in…

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