C Help with this assignment. Show output.

Write the following function:

double inner_product (const double *a, const double *b, int n);

a and b both point to arrays of length n. The function should return a [0] * b [0] + a [1] * b [1] + ... + a [n-1]. Use pointer arithmetic --not subscripting-- to visit array elements. Your program should prompt the user to enter two lists of double types of equal size (list "a" and list "b")