Field Trip

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Alice's school is planning to take some students from her class on a field trip. Alice is really excited about it. There are a total of S students in her class. But due to budget constraints, the school is planning to take only N students for the trip. These students will be picked randomly. And each student has equal chance of being picked. Alice's friend circle has M students including her. Tho

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solution.cppC++17

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