Averages

#include <stdio.h>
#define ROWS 3
#define COLS 5
void storage(int rows, int cols, double array[rows][cols]);
void row_average(int rows, int cols, double array[rows][cols]);
double average(int rows, int cols, double array[rows][cols]);
double largest(int rows, int cols, double array[rows][cols]);

int main(void){
    double array1[ROWS][COLS];
    printf("Enter 3 sets of 5 double numbers each. Press enter after every 5 numbers.\n");
    storage(ROWS, COLS, array1);
    row_average(ROWS, COLS, array1);
    printf("The average of all the values is %.2f.\n", average(ROWS, COLS, array1));
    printf("The biggest value of the 15 values is %.2lf.\n", largest(ROWS, COLS, array1));

    return 0;

}

void storage(int rows, int cols, double array[rows][cols]){
    int i, j;
    for(i=0; i<ROWS; i++){
        for(j=0; j<COLS; j++){
            scanf("%lf", &array[i][j]);
        }
    }
}

void row_average(int rows, int cols, double array[rows][cols]){
    int i, j;
    double subtot=0;
    for(i=0; i<ROWS; i++){
        for(j=0; j<COLS; j++){
            subtot+=array[i][j];
        }
        printf("For row %d, the average is %.2lf.\n", i+1, subtot/COLS);
        subtot=0;
    }
}

double average(int rows, int cols, double array[rows][cols]){
    int i, j;
    double total=0, average;
    for(i=0; i<ROWS; i++){
        for(j=0; j<COLS; j++){
            total+=array[i][j];
        }
    }

    average=total/(rows*cols);

    return average;
}

double largest(int rows, int cols, double array[rows][cols]){
    int i, j;
    double biggest=-100000;
    for(i=0; i<ROWS; i++){
        for(j=0; j<COLS; j++){
            if(array[i][j]>biggest)
                biggest=array[i][j];
        }
    }

    return biggest;
}