Find The Maximum

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Being very thin and skinny, Vinod wants to test his stamina. He takes a certain amount of protein (x) which allows him to run certain distance F(x) in Km. The distance he can run is given by a function F(x) = a*x^3 + b*x^2 + c*x + d . Vinod wants to know that for a certain range of protein [l,r] both included, what is the maximum distance he can run. Input First line will contain T, number of t

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solution.cppC++17

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