This program is to read in a list of integers until the value of -999 is input. Complete the program so that it prints out the number of values read, the total of these values, and the average of these values. 1. Declare the proper variables for the number of values (count), total, and average 2. In the while loop, update your variables after reading a new value 3. Calculate the average 4. Display average, count, and total. The printf statements are already given in the base code. The code I need to edit is below in C programming language.

#include

int main (int argc, char** argv)

{

int val;

/* prompt the user for input */

printf ("Enter in a list of numbers followed by the terminal value of -999\n");

/* loop until the user enters -999 */

scanf ("%d", &val);

while (val != -999)

{

scanf("%d", &val);

}

/* calculate the average of the values read in */

/* display the results */

/* use the following printf statements to display the results */

/* remove the comments */

//printf ("For the list of %d numbers with a total of %d\n", count, total);

//printf (" the average is: %15.5f\n", average);

return 0;

}

This question involves a class named textfile that represents a text file. public class textfile { private string filename; private string filename; private arraylist words; // constructors not shown // postcondition: returns the number of bytes in this file public int filesize() { } // precondition: 0 < = index < words.size() // postcondition: removes numwords words from the words arraylist beginning at // index. public void deletewords(int index, int numwords) { } // precondition: 0 < = index < = words.size() // postcondition: adds elements from newwords array to words arraylist beginning // at index. pub lic voidaddwords(int index, string[] newwords) { } // other methods not shown } complete the filesize() method. the filesize() is computed in bytes. in a text file, each character in each word counts as one byte. in addition, there is a space in between each word in the words arraylist, and each of those spaces also counts as one byte. for example, suppose the words arraylist stores the following words: { mary had a little lamb; its fleece was white as snow. } the filesize() method would compute 4 + 3 + 1 + 6 + 5 + 4 + 6 + 3 + 5 + 2 + 5 as the sum of the lengths of each string in the arraylist. the value returned would be this sum plus 10, because there would also be 10 spaces in between the 11 words. complete the filesize() method below: // postcondition: returns the number of bytes in this file public int filesize() { }