public Form1()
{
_prepareData = new PrepareDataClass();
_bruteForceMethod = new BruteForceMethod();
_greedyMethod = new GreedyMethod();
_branchAndBoundMethod = new BranchAndBoundMethod();
InitializeComponent();
}
private void LaunchButton_Click(object sender, EventArgs e)
{
var matrix = GetMatrix();
var method = new BranchAndBoundMethod(matrix, matrix.GetLength(0));
var results = method.Start();
var imageDraw = new ImageMethod(results);
outputPictureBox.Image = imageDraw.GenetateImage(outputPictureBox.Width, outputPictureBox.Height);
foreach (var result in results)
{
outputTextBox.AppendText(result.ToResultString());
}
}
public void BranchAndBoundMethodTest02()
{
DenseMatrix a = DenseMatrix.OfArray(new double[,]
{
{ 1, 0, 1, 0, 0, 1 },
{ 1, 2, -1, 1, 1, 2 },
{ -2, 4, 1, 0, 1, 0 }
});
DenseVector b = new DenseVector(new double[] { -3, 3, 13 });
DenseVector c = new DenseVector(new double[] { -3, 2, 0, -2, -5, 2 });
DenseVector dLower = new DenseVector(new double[] { -2, -1, -2, 0, 1, -4 });
DenseVector dUpper = new DenseVector(new double[] { 2, 3, 1, 5, 4, -1 });
double startRecord = Double.NegativeInfinity;
DenseVector expectedResult = new DenseVector(new double[] { -2, 2, 0, 2, 1, -1 });
var babm = new BranchAndBoundMethod(a, b, c, dLower, dUpper,
Enumerable.Range(0, a.ColumnCount), startRecord);
var actualResult = babm.Solve();
Assert.AreEqual(expectedResult, actualResult);
Assert.AreEqual(-1, babm.ResultCost);
}
public void BranchAndBoundMethodTest00()
{
DenseMatrix a = DenseMatrix.OfArray(new double[,]
{
{ 1, -5, 3, 1, 0, 0 },
{ 4, -1, 1, 0, 1, 0 },
{ 2, 4, 2, 0, 0, 1 }
});
DenseVector b = new DenseVector(new double[] { -8, 22, 30 });
DenseVector c = new DenseVector(new double[] { 7, -2, 6, 0, 5, 2 });
DenseVector dLower = new DenseVector(new double[] { 2, 1, 0, 0, 1, 1 });
DenseVector dUpper = new DenseVector(new double[] { 6, 6, 5, 2, 4, 6 });
const double startRecord = Double.NegativeInfinity;
DenseVector expectedResult = new DenseVector(new double[] { 6, 3, 0, 1, 1, 6 });
var babm = new BranchAndBoundMethod(a, b, c, dLower, dUpper,
Enumerable.Range(0, a.ColumnCount), startRecord);
var actualResult = babm.Solve();
Assert.AreEqual(expectedResult, actualResult);
Assert.AreEqual(53, babm.ResultCost);
}
public void BranchAndBoundMethodTestZACH()
{
DenseMatrix a = DenseMatrix.OfArray(new double[,]
{
{ 2, -1, 4, -5, 0, -2, 1, 1 },
{ 0, 1, -1, 3, 1, 2, 0, -1 },
{ 1, 1, 2, 2, 1, 0, 4, 3 },
});
DenseVector b = new DenseVector(new double[] { 0, 5, 4 });
DenseVector c = new DenseVector(new double[] { 2, 4, 3, -1, 1, 2, 6, -5 });
DenseVector dLower = new DenseVector(new double[] { 0, 0, 0, 0, 0, 0, 0, 0 });
DenseVector dUpper = new DenseVector(new double[] { 10, 10, 10, 10, 10, 10, 10, 10 });
const double startRecord = Double.NegativeInfinity;
DenseVector expectedResult = new DenseVector(new double[] { 6, 3, 0, 1, 1, 6 });
var babm = new BranchAndBoundMethod(a, b, c, dLower, dUpper,
Enumerable.Range(0, a.ColumnCount), startRecord);
var actualResult = babm.Solve();
Assert.AreEqual(expectedResult, actualResult);
Assert.AreEqual(53, babm.ResultCost);
Assert.AreEqual(10, babm.IterationCount);
}
public void BranchAndBoundMethodTest9()
{
DenseMatrix a = DenseMatrix.OfArray(new double[,]
{
{ 2, 0, 1, 0, 0, 3, 5 },
{ 0, 2, 2.1, 0, 0, 3.5, 5 },
{ 0, 0, 3, 2, 0, 2, 1.1 },
{ 0, 0, 3, 0, 2, 2, -2.5 }
});
DenseVector b = new DenseVector(new double[] { 58, 66.3, 36.7, 13.5 });
DenseVector c = new DenseVector(new double[] { 1, 2, 3, 1, 2, 3, 4 });
DenseVector dLower = new DenseVector(new double[] { 1, 1, 1, 1, 1, 1, 1 });
DenseVector dUpper = new DenseVector(new double[] { 2, 3, 4, 5, 8, 7, 7 });
double startRecord = Double.NegativeInfinity;
DenseVector expectedResult = new DenseVector(new double[] { 1, 2, 3, 4, 5, 6, 7 });
var babm = new BranchAndBoundMethod(a, b, c, dLower, dUpper,
Enumerable.Range(0, a.ColumnCount), startRecord);
var actualResult = babm.Solve();
Assert.AreEqual(expectedResult, actualResult);
Assert.AreEqual(74, babm.ResultCost);
}
public void BranchAndBoundMethodTest8()
{
DenseMatrix a = DenseMatrix.OfArray(new double[,]
{
{ 1, 0, 1, 0, 4, 3, 4 },
{ 0, 1, 2, 0, 55, 3.5, 5 },
{ 0, 0, 3, 1, 6, 2, -2.5 }
});
DenseVector b = new DenseVector(new double[] { 26, 185, 32.5 });
DenseVector c = new DenseVector(new double[] { 1, 2, 3, -1, 4, -5, 6 });
DenseVector dLower = new DenseVector(new double[] { 0, 1, 0, 0, 0, 0, 0 });
DenseVector dUpper = new DenseVector(new double[] { 1, 2, 5, 7, 8, 4, 2 });
double startRecord = Double.NegativeInfinity;
DenseVector expectedResult = new DenseVector(new double[] { 1, 2, 3, 4, 3, 2, 1 });
var babm = new BranchAndBoundMethod(a, b, c, dLower, dUpper,
Enumerable.Range(0, a.ColumnCount), startRecord);
var actualResult = babm.Solve();
Assert.AreEqual(expectedResult, actualResult);
Assert.AreEqual(18, babm.ResultCost);
}
public void BranchAndBoundMethodTest7()
{
DenseMatrix a = DenseMatrix.OfArray(new double[,]
{
{ 1, -3, 2, 0, 1, -1, 4, -1, 0 },
{ 1, -1, 6, 1, 0, -2, 2, 2, 0 },
{ 2, 2, -1, 1, 0, -3, 2, -1, 1 },
{ 4, 1, 0, 0, 1, -1, 0, -1, 1 },
{ 1, 1, 1, 1, 1, 3, 1, 1, 1 }
});
DenseVector b = new DenseVector(new double[] { 18, 18, 30, 15, 18 });
DenseVector c = new DenseVector(new double[] { 7, 5, -2, 4, 3, 1, 2, 8, 3 });
DenseVector dLower = new DenseVector(new double[] { 0, 0, 0, 0, 0, 0, 0, 0, 0 });
DenseVector dUpper = new DenseVector(new double[] { 8, 8, 8, 8, 8, 8, 8, 8, 8 });
double startRecord = Double.NegativeInfinity;
DenseVector expectedResult = new DenseVector(new double[] { 3, 5, 0, 0, 0, 0, 8, 2, 0 });
var babm = new BranchAndBoundMethod(a, b, c, dLower, dUpper,
Enumerable.Range(0, a.ColumnCount), startRecord);
var actualResult = babm.Solve();
Assert.AreEqual(expectedResult, actualResult);
Assert.AreEqual(78, babm.ResultCost);
}
public void BranchAndBoundMethodTest6()
{
DenseMatrix a = DenseMatrix.OfArray(new double[,]
{
{ 1, 0, 0, 3, 1, -3, 4, -1 },
{ 0, 1, 0, 4, -3, 3, 5, 3 },
{ 0, 0, 1, 1, 0, 2, -2, 1 }
});
DenseVector b = new DenseVector(new double[] { 30, 78, 18 });
DenseVector c = new DenseVector(new double[] { 2, 1, -2, -1, 4, -5, 5, 5 });
DenseVector dLower = new DenseVector(new double[] { 0, 0, 0, 0, 0, 0, 0, 0 });
DenseVector dUpper = new DenseVector(new double[] { 5, 5, 3, 4, 5, 6, 6, 8 });
double startRecord = Double.NegativeInfinity;
var babm = new BranchAndBoundMethod(a, b, c, dLower, dUpper,
Enumerable.Range(0, a.ColumnCount), startRecord);
Assert.Catch<ArithmeticException>(() => babm.Solve());
}
public void BranchAndBoundMethodTest4()
{
DenseMatrix a = DenseMatrix.OfArray(new double[,]
{
{ 4, 0, 0, 0, 0, -3, 4, -1, 2, 3 },
{ 0, 1, 0, 0, 0, 3, 5, 3, 4, 5 },
{ 0, 0, 1, 0, 0, 22, -2, 1, 6, 7 },
{ 0, 0, 0, 1, 0, 6, -2, 7, 5, 6 },
{ 0, 0, 0, 0, 1, 5, 5, 1, 6, 7 }
});
DenseVector b = new DenseVector(new double[] { 8, 5, 4, 7, 8 });
DenseVector c = new DenseVector(new double[] { 2, 1, -2, -1, 4, -5, 5, 5, 1, 2 });
DenseVector dLower = new DenseVector(new double[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 });
DenseVector dUpper = new DenseVector(new double[] { 10, 10, 10, 10, 10, 10, 10, 10, 10, 10 });
double startRecord = Double.NegativeInfinity;
DenseVector expectedResult = new DenseVector(new double[] { 2, 5, 4, 7, 8, 0, 0, 0, 0, 0 });
var babm = new BranchAndBoundMethod(a, b, c, dLower, dUpper,
Enumerable.Range(0, a.ColumnCount), startRecord);
var actualResult = babm.Solve();
Assert.AreEqual(expectedResult, actualResult);
Assert.AreEqual(26, babm.ResultCost);
}
