Greetings all.
I need help to create a c program for computation of moving average.

A moving average would look like this:
Average = 0.0 (Use doubles)
Number of elements = 0.0
Total = 0.0
While there are more numbers:
Ask for a new number.
Add new number to total.
Add 1 to number of elements.
Divide total by number of elements.
Store in average.
Loop

And here is a lovely snippet of code for you to get you started.

#include <stdio.h>
int main(){
    double average=0;
    double sum=0;
    double entry;
    char keepGoing='y';
    while(keepGoing=='y'){
        printf("Please input your value: ");
        http://www.cplusplus.com/reference/clibrary/cstdio/fscanf/

        // Do something awesome.

        printf("Keep going?");
        //http://www.cplusplus.com/reference/clibrary/cstdio/fscanf/
    }
    return 0;
}