Exercises 47 and 48 we consider the problem of placing towers along a straight road, so that every building on the road receives cellular service. Assume that a building receives cellular service if it is within one mile of a tower,
47.Devise a greedy algorithm that uses the minimum number of towers possible to provide cell service todbuildings located at positionsx1,x2,...,xdfrom the start of the road.[Hint:At each step, go as far as possible along the road before adding atom so as not to leave any buildings without coverage,]
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