void Start()
{
EdgeWeightedGraph G = new EdgeWeightedGraph(txt, ' ');
BoruvkaMST mst = new BoruvkaMST(G);
foreach (Edge e in mst.edges())
{
print(e);
}
print(mst.Weight());
}
public BoruvkaMST(EdgeWeightedGraph ewg)
{
this.mst = new Bag();
UF uF = new UF(ewg.V());
int num = 1;
while (num < ewg.V() && this.mst.size() < ewg.V() - 1)
{
Edge[] array = new Edge[ewg.V()];
Iterator iterator = ewg.edges().iterator();
while (iterator.hasNext())
{
Edge edge = (Edge)iterator.next();
int num2 = edge.either();
int num3 = edge.other(num2);
int num4 = uF.find(num2);
int num5 = uF.find(num3);
if (num4 != num5)
{
if (array[num4] == null || BoruvkaMST.less(edge, array[num4]))
{
array[num4] = edge;
}
if (array[num5] == null || BoruvkaMST.less(edge, array[num5]))
{
array[num5] = edge;
}
}
}
for (int i = 0; i < ewg.V(); i++)
{
Edge edge = array[i];
if (edge != null)
{
int num2 = edge.either();
int num3 = edge.other(num2);
if (!uF.connected(num2, num3))
{
this.mst.add(edge);
this.weight += edge.weight();
uF.union(num2, num3);
}
}
}
num += num;
}
if (!BoruvkaMST.s_assertionsDisabled && !this.check(ewg))
{
throw new AssertionError();
}
}
/**/ public static void main(string[] strarr)
{
In i = new In(strarr[0]);
EdgeWeightedGraph ewg = new EdgeWeightedGraph(i);
BoruvkaMST boruvkaMST = new BoruvkaMST(ewg);
Iterator iterator = boruvkaMST.edges().iterator();
while (iterator.hasNext())
{
Edge obj = (Edge)iterator.next();
StdOut.println(obj);
}
StdOut.printf("%.5f\n", new object[]
{
java.lang.Double.valueOf(boruvkaMST.weight())
});
}
public void Run()
{
Console.WriteLine("Choose file:"); // Prompt
Console.WriteLine("1 - tinyEWG.txt"); // Prompt
Console.WriteLine("2 - mediumEWG.txt"); // Prompt
//Console.WriteLine("3 - mediumEWG.txt"); // Prompt
Console.WriteLine("or quit"); // Prompt
var fileNumber = Console.ReadLine();
string fileName;
switch (fileNumber)
{
case "1":
fileName = "tinyEWG.txt";
break;
case "2":
fileName = "mediumEWG.txt";
break;
//case "3":
// fileName = "largeEWG.zip";
// break;
case "quit":
return;
default:
return;
}
var @in = new In($"Files\\Graphs\\{fileName}");
var lines = @in.ReadAllLines();
var lineIterator = 0;
var v = 0;
var e = 0;
var edges = new List <EdgeW>();
foreach (var line in lines)
{
if (lineIterator == 0)
{
v = Convert.ToInt32(line);
}
if (lineIterator == 1)
{
e = Convert.ToInt32(line);
}
if (lineIterator > 1)
{
var lineSplitted = line.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var ve = Convert.ToInt32(lineSplitted[0]);
var we = Convert.ToInt32(lineSplitted[1]);
var weight = Convert.ToDouble(lineSplitted[2], CultureInfo.InvariantCulture);
var edge = new EdgeW(ve, we, weight);
edges.Add(edge);
}
lineIterator++;
}
var edgeWeightedGraph = new EdgeWeightedGraph(v, e, edges);
Console.WriteLine(edgeWeightedGraph);
var mst = new BoruvkaMST(edgeWeightedGraph);
foreach (var edge in mst.Edges())
{
Console.WriteLine(edge);
}
Console.Write($"{$"{mst.Weight():0.00000}"}{Environment.NewLine}");
Console.ReadLine();
}
