public void GetShortestRouteLengthTest3()
{
var distances = new float[,]
{
{ 0, 20, 20 },
{ 20, 0, 20 },
{ 20, 20, 0 }
};
var heldKarp = new HeldKarp(3, distances);
var length = heldKarp.GetShortestRouteLength();
length.Should().Be(60);
}
public void GetShortestRouteLengthTest()
{
var distances = new float[,]
{
{ 0, 2, 1, 4 },
{ 2, 0, 3, 5 },
{ 1, 3, 0, 6 },
{ 4, 5, 6, 0 }
};
var heldKarp = new HeldKarp(4, distances);
var length = heldKarp.GetShortestRouteLength();
length.Should().Be(13);
}
public void GetShortestRouteLengthTest2()
{
var distances = new float[,]
{
{ 0, 20, 42, 35 },
{ 20, 0, 30, 34 },
{ 42, 30, 0, 12 },
{ 35, 34, 12, 0 }
};
var heldKarp = new HeldKarp(4, distances);
var length = heldKarp.GetShortestRouteLength();
length.Should().Be(97);
}
public void Run()
{
using (var reader = new StreamReader("InputFiles//tsp.txt"))
using (var writer = new StreamWriter("output.txt"))
{
string row = reader.ReadLine();
int n = int.Parse(row);
var coordinates = new float[n, 2];
for (int i = 0; i < n; i++)
{
row = reader.ReadLine();
var parts = row.Split(new[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
var x = float.Parse(parts[0], CultureInfo.InvariantCulture);
var y = float.Parse(parts[1], CultureInfo.InvariantCulture);
coordinates[i, 0] = x;
coordinates[i, 1] = y;
}
var distances = new float[n, n];
for (int i = 0; i < n; i++)
for (int j = i; j < n; j++)
{
if (i == j)
{
distances[i, j] = 0;
}
else
{
var distance = CalculateDistance(coordinates[i, 0], coordinates[i, 1], coordinates[j, 0], coordinates[j, 1]);
distances[i, j] = distance;
distances[j, i] = distance;
}
}
var heldKarp = new HeldKarp(n, distances);
var length = heldKarp.GetShortestRouteLength();
writer.WriteLine(length);
}
}
