Yash Goes to Bank

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Mr. Srinivasan Pillai - CEO of National Bank of India (NBI) comes up with a plan to provide a free international trip to some of its customers that have done the highest number of financial transactions annually. The bank has $400$ unique lottery tickets, each with a unique ticket Id. NBI is a very famous bank in India and has a large number of customers engaged with it. At the beginning of each y

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solution.cppC++17

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