Last Non-Zero Digit

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Chef's friend Hanzala gave him a non-negative integer $N$ and asked him to find the position of the last non-zero digit (from the left) in $N!$. As an example, let $N = 7$. Also, $7! = 5040$. So, the position of the last non-zero digit in $7!$ is $3$. Chef tried hard but couldn't solve the problem. Can you? ###Input: - First line will contain $T$, number of testcases. Then the testcase

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solution.cppC++17

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