Stack Machine

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Stack Machine A mathematician observes one person get on a bus. Then two people get off the bus. The mathematician says: "If one more person gets on the bus, the bus will be empty." A stack machine is a special kind of bus. It only has doors at the front, and it is so narrow that the people on the bus cannot move past each other. Of the people on the bus, the person who got on the bus last must

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solution.cppC++17

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