Attendance Register

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In a parallel universe, VBIT is located on Mars. And with every academic year, new students come in and seniors pass out (most of them). Now, all the faculty is busy with other important work, so the HoD of Avishkar block has asked you to prepare the attendance register of a section. The attendance register is always in the lexicographical order i.e. the Dictionary order. Given, $N$ names of

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solution.cppC++17

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