The Cheating Classroom

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During a MCQ test, a classroom decided to cheat together. There are in total N x M benches.[N rows M columns]. Each bench has one student. With a total of NxM number of students[No benches are empty]. Now there is only one master cheat sheet in the class with student at bench (0,0). Each student requires 5 min to mark all the answers. After marking all the answers, the student passes the sheet

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solution.cppC++17

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