Write a program that lets a user enter N and that outputs N! (N factorial, meaning N*(N-1)*(N-2)*.*2*1). Hint:Use a loop variable i that counts from total-1 down to 1.

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Write a program that inserts the digits of an integer into an array in originalorderfollowed by reverse order. first, promptthe user to enter a positive integer(> 0). determine the number of digits of the integer. create a dynamically allocated integer arrayof a size twice the number of digits.now insert the digits in original order which will occupy half of the array. then, insert the digits in reverse order.finally, output thedigits in thearray.use at least two functions to organize your program.

Difference between ancient and modern mode of information transmission