Programming in C

Need help solving this:

Create an interactive program using $1$ user defined function, $1$ counting loop, $1$ input validation

loop, and an array.

You need to create a program that fills in an array of doubles and calculates the average of the

array. Declare the doubles array to be a size of $30.$ Ask the user for how many doubles they

would like to add to the array $($maximum of $30,$ the size of the array$).$ Store this value into a

variable called count. Implement a loop to make sure that the user enters a value within this

range $(1-30).$ Fill the array in the main function with user input, one double at a time, before

passing it to the Array$\_$Avg function. Store these doubles in an array called arr. The value of

count and the array will be passed to a function called Array$\_$Avg. Return the average to the

main function and print out the average.

Please refer to the following prototype and example output.

double Array$\_$Avg $($double arr$[],$ int count$)$;$//$prototype

$//$Array$\_$Avg function takes in a double array $($double arr$[])$ and the number of doubles

within the array $($int count$)$ from the main function

$//$returns the average of the array $($double$)$ to the main function

$//$the average of the array should be printed out by the main function

Example output:

Please enter the number of elements in your array: $4$

Please enter number $1$ out of $4$:$23\mathrm{.}5$

Please enter number $2$ out of $4$:$45\mathrm{.}6$

Please enter number $3$ out of $4$:$78\mathrm{.}9$

Please enter number $4$ out of $4$:$110\mathrm{.}5$

The average of the array is $64\mathrm{.}62.$