Answer to Question #330773 in C# for Macky

Question

The first line will contain a message prompt to input the size of the matrix.

The succeeding lines will prompt for the elements of the matrix.

The last line will contain the word "MAGIC!" if it is a magic square and "Just a square" if it isn't.

Answer 1

public static void Main()

{

int[,] array = InitMatrix(2);

var isMagicCube = IsMagicCube(array);

if (isMagicCube) {

Console.WriteLine("MAGIC!");

}

else {

Console.WriteLine("Just a square");

}

}

public static bool IsMagicCube(int[,] arr)

{

int k = 0;

   int l = arr.GetLength(0);

    int p = arr[0, l - 1];

    int o = arr.GetLength(1) + arr.GetLength(0)-2;

    for (int i = 0; i < arr.GetLength(0)-1; i++)

    {

      k += (arr[i, l - 1] == p) ? 1 : 0;

      k += (arr[l - 1,i] == p) ? 1 : 0;

    }

 

    for (int i = 0; i < arr.GetLength(0); i++)

    {

      for (int j = 0; j < arr.GetLength(1); j++)

      {

        Console.Write("{0}\t", arr[i, j]);

      }

Console.WriteLine();       

    }

     

return k == o;

}

private static int[,] InitMatrix(int matrixSize) {

var matrix = new int[matrixSize, matrixSize];

for (int i = 0; i < matrixSize; i++)

    {

     for (int j = 0; j < matrixSize; j++)

{

       matrix[i, j] = Convert.ToInt32(Console.ReadLine());

      }

    }

return matrix;

}