Attendance Disturbance

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The professor in Lakshmi's class is frustrated. The students keep repeating their names when she asks for a roll call. She needs to create a list of all the students present for the lecture without writing the same name twice. She also wants to arrange the names in the sorted order. Can you help her out? Input: - First line contains T. T testcases follow. - The first line of each testcase conta

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solution.cppC++17

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