#include <stdio.h>
#include <malloc.h>
#include<stdlib.h>
#define M 3



void my_fill(int array1[M][M])
{

    //          -----func: my_fill-----
    //Receives every time one of the two dimensional
    //arrays and fills it by the absorption of real
    //numbers only between 18 and 75.

    int i,j;
    printf("\n\n");

    for(i = 0;i < M;i++)//runs on the rows
    {
        for(j = 0;j < M;j++)//runs on the colums
        {
            printf("Enter number between 18 to 75 include\n");
            scanf("%d",&array1[i][j]);// gets number from the user
            while ((array1[i][j] < 18) || (array1[i][j] > 75))// loop for cheaking if the number is less then 18 or more then 75 then
            {
                printf("wrong number , try again\n");//print's suitable message
                printf("Enter number between 18 to 75 include\n");//
                scanf("%d",&array1[i][j]);//get number from the user
            }
        }
    }
}


void my_print(int matrix[M][M])
{

    //           -----func: my_print-----
    //prints the the array that was filled in my_fill

    int i,j;
    printf("\n\n\n");
    for(i = 0;i < M;i++)//runs on the rows
    {
        for(j = 0;j < M;j++)//runs on the colums
        {                                                             //
            printf(" %d",matrix[i][j]);                          //for correct print of the numbers of the array                                                         //
        }
        printf("\n");
    }
    printf("\n\n");
}


int magic_board(int matrix[M][M])
{
    int i,j,sum_row[M] = {0},sum_col[M] = {0},sum_main = 0,sum_secondry = 0,row_col_equal = 0;

    for(i = 0;i < M;i++)//runs on the rows
    {
        for(j = 0;j < M;j++)//runs on the colums
        {
            sum_row[i] += matrix[i][j];
            sum_col[i] += matrix[j][i];
            if (i == j)//if main diagonal
                sum_main += matrix[i][j];//sums the main diagonal

            if ((i  + j) == (M-1))//if secondry diagonal
                sum_secondry += matrix[i][j];//sums the secondry diagonal

        }

    }
    for (i = 0;i < M-1;i++)
    {
        if ((sum_row[i] == sum_row[i+1]) && (sum_col[i] == sum_col[i+1]))

            row_col_equal++;

    }

    if((sum_row[0] == sum_col[0]) && (sum_main == sum_secondry) && (sum_main == sum_row[0]) && (sum_secondry == sum_col[0]) && (row_col_equal == M-1))
        return 1;
    else
        return 0;

}


int *build_array(int n)
{
    int *new_array,i,num;

    new_array = (int*)malloc(n*sizeof(int));

        if (new_array == NULL)
        {
            printf("Memory faild\n");
            exit(1);
        }
        for (i = 0;i < n;)
        {
            printf("Enter number between -30 to 30\n");
            scanf("%d",&num);
            if ((num <= 30) && (num >= -30))
                new_array[i] = num;
                i++;
        }

        return new_array;

}


void main ()
{
    int matrix[M][M],num_menu = 0,return_resualt,array_size,*a,i;


    while (num_menu != 6)//loop that keep the menu running till the user press 5
    {
        printf("Choice function:\n\n1 - Fill array function\n2 - Print array function\n3 - Magic Board function\n4 - Build Array function\n5 - Checking function\n6 - Exit \n\n");//menu
        scanf("%d",&num_menu);//get users choise

        while ((num_menu < 1) || (num_menu > 6))//loop that print wrong choise if press wrong number in the menu < 1 or > 6
        {
            printf("Wrong choice - Try again\n\n");
            printf("Choice function:\n\n1 - Fill array function\n2 - Print array function\n3 - Magic Board function\n4 - Build Array function\n5 - Checking function\n6 - Exit \n\n");//menu
            scanf("%d",&num_menu);
        }
        switch (num_menu)
        {

        case 1:
            my_fill(matrix);
            break;

        case 2:
            my_print(matrix);
            break;

        case 3:
            return_resualt = magic_board(matrix);
            printf("\n");
            if (return_resualt == 1)
                printf("The array is Magic Board\n\n");
            else
                printf("The array is NOT Magic Board\n\n");

            break;

        case 4:
            printf("Enter a positive number for size of the array.\n");
            scanf("%d",&array_size);
            a= build_array(array_size);
            for (i = 0;i < array_size;i++)
            {
                printf("  %d",a[i]);
            }

            break;

        case 5:
            break;

        }
        printf("\n");



    }
}