#include <stdio.h>
#include <stdlib.h>


#define MAX_SIZE 100

int magic_square(int size, int array[MAX_SIZE][MAX_SIZE]); 

// This is a simple main function which could be used
// to test your magic_square function.
// It will not be marked.
// Only your magic_square function will be marked.
int main(void) {
    // In the below sample test_array, the sum of each row, 
    // column and diagonal is 65. If you change the array, 
    // the sums will change as well.
    int test_array[MAX_SIZE][MAX_SIZE] = {
        {11, 24,  7, 20,  3},
        { 4, 12, 25,  8, 16},
        {17,  5, 13, 21,  9},
        {10, 18,  1, 14, 22},
        {23,  6, 19,  2, 15}
    };

    int size = 5;
    
    if (magic_square(size, test_array) != 0) {
        printf("You have a magic square.\n");
    } else {
        printf("You do not have a magic square.\n");
    }

    return 0;
}

// Is a magic square if sum of rows, columns and diagonals all equal
// returns this sum if it is a magic square
// returns 0 otherwise
int magic_square(int size, int array[MAX_SIZE][MAX_SIZE]) {
    // PUT YOUR CODE HERE (change the next line!) 
    return -1;
}