General Functions. Pointers are often used as function arguments when we want to return mo...

General Functions. Pointers are often used as function arguments when we want to return more than one value from the function. In each of the following problems, write the indicated function, and then develop a main function for testing the function:

Write a function that returns the double average value of a one-dimensional integer array, in addition to determining the number of values in the array that are greater than the average. Assume that the corresponding function prototype statement is

double average(int x[], int npts,int *gtr);

where npts contains the number of values in array x and gtr is a pointer to the variable that stores the number of values in x that are greater than the average.