Question: Professor Williams comes up with a scheme that allows the closest-pair algorithm to check only 5 points following each point in array Y. The idea

Professor Williams comes up with a scheme that allows the closest-pair algorithm to check only 5 points following each point in array Y′. The idea is always to place points on line l into set P_L. Then, there cannot be pairs of coincident points on line l with one point in P_L and one in P_R. Thus, at most 6 points can reside in the δ × 2δ rectangle. What is the flaw in the professor’s scheme?

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