public static void TestMaxRectAreaInBinaryMatrix()
{
MaxSqAreaInBinaryMatrix mr = new MaxSqAreaInBinaryMatrix();
int[,] mat = new int[, ]
{
{ 0, 1, 1, 1 },
{ 1, 1, 0, 1 },
{ 0, 0, 0, 1 },
{ 0, 1, 1, 1 },
{ 1, 1, 1, 1 },
{ 0, 1, 1, 1 },
{ 0, 1, 1, 1 },
};
Console.WriteLine("The input matrix is as shown below:");
MatrixProblemHelper.PrintMatrix(mat);
Console.WriteLine("The max square is at {0}", mr.GetMaxRectArea(mat));
mat = new int[, ]
{
{ 1, 0, 1 },
{ 0, 1, 0 },
{ 1, 0, 1 }
};
Console.WriteLine("The input matrix is as shown below:");
MatrixProblemHelper.PrintMatrix(mat);
Console.WriteLine("The max square is at {0}", mr.GetMaxRectArea(mat));
}
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 TestWaterfallCreation()
{
float[,] area = new float[, ]
{
{ 0, 0, 50, 0, 0 },
{ 0, -1, -1, -1, 0 },
{ -1, 0, 0, 0, -1 },
{ 0, -1, 0, -1, 0 },
};
MatrixProblemHelper.PrintMatrix(area);
area = GetWaterFallVolumes(area);
Console.WriteLine("The water fall volume is as shown below:");
MatrixProblemHelper.PrintMatrix(area);
area = new float[, ]
{
{ 0, 0, 50, 0, 0 },
{ 0, -1, -1, -1, -1 },
{ -1, -1, -1, -1, 0 },
{ 0, -1, 0, -1, 0 },
};
MatrixProblemHelper.PrintMatrix(area);
area = GetWaterFallVolumes(area);
Console.WriteLine("The water fall volume is as shown below:");
MatrixProblemHelper.PrintMatrix(area);
area = new float[, ]
{
{ 0, 0, 50, 0, 0 },
{ 0, -1, -1, -1, -1 },
{ -1, -1, -1, -1, 0 },
{ -1, -1, 0, -1, -1 },
};
MatrixProblemHelper.PrintMatrix(area);
area = GetWaterFallVolumes(area);
Console.WriteLine("The water fall volume is as shown below:");
MatrixProblemHelper.PrintMatrix(area);
area = new float[, ]
{
{ 0, 0, 50, 0, 0 },
{ 0, -1, -1, -1, -1 },
{ -1, -1, -1, -1, 0 },
{ -1, -1, -1, -1, -1 },
{ -1, 0, 0, -1, -1 },
};
MatrixProblemHelper.PrintMatrix(area);
area = GetWaterFallVolumes(area);
Console.WriteLine("The water fall volume is as shown below:");
MatrixProblemHelper.PrintMatrix(area);
}
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);
}
public static void TestSortedArrayFromSortedMatrix()
{
int[,] mat = new int[, ] {
{ 1, 2, 5 }, { 3, 6, 10 }, { 4, 20, 28 }
};
MatrixProblemHelper.PrintMatrix(mat);
SortedArrayFromSortedMatrix sm = new SortedArrayFromSortedMatrix(mat);
Console.WriteLine("the sorted array is as shown below:");
ArrayHelper.PrintArray(sm.SortedArray);
mat = new int[, ] {
{ 1, 2, 5 }, { 3, 6, 10 }, { 4, 20, 28 }, { 4, 20, 28 }
};
MatrixProblemHelper.PrintMatrix(mat);
sm = new SortedArrayFromSortedMatrix(mat);
Console.WriteLine("the sorted array is as shown below:");
ArrayHelper.PrintArray(sm.SortedArray);
}
