Jealous Boy

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It is time of i.fest'16 and deadline is till 2 am for girls. Last night one newly formed couple (Mr.X and Miss.Y) was going on CR. Seeing this Mr.Z who has a big crush on Miss Y since first year, wants to follow them and see what they are doing this late.So assuming CR as a circular track of radius r. Both the couple and Mr.Z starts from canteen. They start either in same direction or in the oppos

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solution.cppC++17

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