Unlucky Gambler

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Alan is a young, money making minded teenage chap who wants to make a few quick bucks, so he takes to lotteries, but his luck seems to be eluding him at each corner. So he turned to Steve, a numerologist, Steve gave him N natural numbers and asked him to buy a specific numbered lottery ticket . The number on the ticket which can win a lottery for Alan should be the least integer value that cannot

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solution.cppC++17

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