Factorial

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###Difficulty Level - Very Easy Albert doesn't like Mathematics. But he had to do his homework. His teacher gives him a number $N$ and he has to calculate its factorial. Help Albert calculate the factorial. ###Input: - The line of input is an integer $N$ ###Output: - Output the factorial of the number $N$. ###Constraints - $1 \leq N \leq 10$ ###Sample Input: 5 ###Sample Output:

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solution.cppC++17

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