Iteration Challenge

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Sudarshan is good in coding and solves coding problem very fast, so to challenge him Yash gave him a special sequence and asked him to find the nth element of the sequence. The sequence has a special property that if the sequence starts with k than the next element of a sequence is "$K$ + ($the$ $product$ $of$ $the$ $nonzero$ $digits$ $of$ $K$)". For example, if k is 6 then the next elements seque

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solution.cppC++17

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