Question

How to sum the corners of a matrix in VB.NET

Answer 1

Imports System

Public Class MatrixCorners
	Public Shared Function sumMatrixCorners(ByVal matrix As Integer(,)) As Integer
		Return matrix(0, 0) + 
        	   matrix(0, matrix.GetUpperBound(0) + 1) + 
        	   matrix(matrix.GetUpperBound(1) - 1, 0) +
        	   matrix(matrix.GetUpperBound(1) - 1, matrix.GetUpperBound(0) + 1)
	End Function

    Public Shared Sub Main(ByVal args As String())
        Dim matrix(,) As Integer = New Integer(,) {
			{1, 2, 3, 4}, 
			{5, 6, 7, 8}, 
			{9, 3, 2, 0}}        
        
        Console.WriteLine(sumMatrixCorners(matrix))
    End Sub
End Class
 
 
 
' run:
'
' 14
'

 

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