The Gift

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Alice is a huge fan of numbers. So Bob, her boyfriend, gave her a problem to solve. If she solved the problem, he would give her a gift (yea right!). Bob gave Alice a huge number N and asked her to find the product of its digits. Alice knows that Bob is just doing this so that she doesn’t irritate him. So she asks your help to get the answer fast and claim the gift! Since the answer could be huge,

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solution.cppC++17

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