This is a C program. If you run the code, it will show you a 2D array of the test scores of 3 students and their averages. The row of "Student no 4" shows just the average of every test. What I want you to do is add the average for all the class (excluding Student no 4 which is the average row of every test). Please make sure to complete and modify according to what I wrote, and not create a total remake of the program. I hope your solution is clear, simple, and concised.

Thank you and I appreciate your help.

#include

#include

#define CLS system("cls")

#define PAUSE system("pause")

#define ROWS 10000

#define COLS 5 // modified it from 4 to 5

void displayArray(float grades[][COLS], int c) {

int i, j;

CLS;

// to update sums of each test and for each student

for(i=0;i

{

for(j=0;j

{

grades[i][COLS-1] += grades[i][j];

grades[c-1][j] +=grades[i][j];

}

}

// to update each student's sum to average

for(i=0;i

{

grades[i][COLS-1] = grades[i][COLS-1]/(COLS-1)*1.0;

grades[c-1][COLS-1] += grades[i][COLS-1];

}

// to update each exam's average

for(i=0;i

{

grades[c-1][i] = grades[c-1][i]/(c-1)*1.0;

}

printf("-----\t---\t---\t---\t---\t----- ");

printf("StdNo\tEX1\tEx2\tEx3\tEx4\t|Avg| ");

printf("-----\t---\t---\t---\t---\t----- ");

for (i = 0; i < c; i++) {

printf("%i\t", i+1);

for (j = 0; j < COLS; j++)

printf("%.1f\t", grades[i][j]);

printf(" ");

} // end outer loop

PAUSE;

} // end displayArray

int main() {

int counter = 0; // stores the effective size

float grades[ROWS][COLS] = { {60,70,80,85}, {30,86,91,98}, {89,93,83,91}, {0,0,0,0}};

counter = 3;

displayArray(grades, counter+1); //no pass for reference *

PAUSE;

}