public static void TestPrintMatrixInSpiral()
{
int[,] mat = MatrixProblemHelper.CreateMatrix(4, 4);
MatrixProblemHelper.PrintMatrix(mat);
Console.WriteLine("The matrix spirally is as shown below:");
Print(mat);
mat = MatrixProblemHelper.CreateMatrix(3, 2);
MatrixProblemHelper.PrintMatrix(mat);
Console.WriteLine("The matrix spirally is as shown below:");
Print(mat);
mat = MatrixProblemHelper.CreateMatrix(2, 3);
MatrixProblemHelper.PrintMatrix(mat);
Console.WriteLine("The matrix spirally is as shown below:");
Print(mat);
mat = MatrixProblemHelper.CreateMatrix(3, 3);
MatrixProblemHelper.PrintMatrix(mat);
Console.WriteLine("The matrix spirally is as shown below:");
Print(mat);
mat = MatrixProblemHelper.CreateMatrix(3, 4);
MatrixProblemHelper.PrintMatrix(mat);
Console.WriteLine("The matrix spirally is as shown below:");
Print(mat);
}
public static void TestRotateMatrix()
{
Rotate_Matrix_90_degree rtMat = new Rotate_Matrix_90_degree();
int[,] mat = MatrixProblemHelper.CreateMatrix(4, 4);
MatrixProblemHelper.PrintMatrix(mat);
Console.WriteLine();
mat = rtMat.RotateMatrix(mat);
MatrixProblemHelper.PrintMatrix(mat);
}
public static void TestRotateMatrix180()
{
int[,] mat = MatrixProblemHelper.CreateMatrix(4,5);
Console.WriteLine("The actual matrix");
MatrixProblemHelper.PrintMatrix(mat);
Console.WriteLine("Rotate matrix 180 degree");
RotateMatrix180 rotateMat = new RotateMatrix180();
rotateMat.RotateMatrix180Degree(mat);
MatrixProblemHelper.PrintMatrix(mat);
}
public static void TestSumOfMatrixElements()
{
int[,] mat = MatrixProblemHelper.CreateMatrix(4, 5);
Console.WriteLine("The actual matrix");
MatrixProblemHelper.PrintMatrix(mat);
Console.WriteLine("Sum of matrix elements in the rectangle");
SumOfMatrixElementsFormedByRectangleWithCoordinates sumMat = new SumOfMatrixElementsFormedByRectangleWithCoordinates();
mat = sumMat.PreProcessMatrix(mat);
MatrixProblemHelper.PrintMatrix(mat);
Console.WriteLine("the area is: " + sumMat.GetArea(2, 2, 3, 4, mat));
}
public static void TestMakeRowColZero1()
{
int[,] mat = MatrixProblemHelper.CreateMatrix(4, 5);
// Make a few places 0
Random rnd = new Random();
mat[rnd.Next(0, 4), rnd.Next(0, 5)] = 0;
mat[rnd.Next(0, 4), rnd.Next(0, 5)] = 0;
Console.WriteLine("original matrix");
MatrixProblemHelper.PrintMatrix(mat);
Console.WriteLine();
Console.WriteLine("all affected rows and columns are 0 using Algorithm 1");
mat = MakeRowColZero1(mat);
MatrixProblemHelper.PrintMatrix(mat);
}