Dinner With Friends

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Your friends are all going to a restaurant for dinner tonight. They're all very good at math, but they're all very strange: your ath friend (starting from 1) will be unhappy unless the total cost of the meal is a positive integer, and is divisible by a. Your friends enter the restaurant one at a time. As soon as someone enters the restaurant, if that person is unhappy then the group will call a w

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solution.cppC++17

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