public EdgeWeightedDigraph(string fileName)
{
try
{
using (StreamReader streamReader = new StreamReader(fileName))
{
_numberOfVertices = Convert.ToInt32(streamReader.ReadLine());
_numberOfEdges = Convert.ToInt32(streamReader.ReadLine());
InitializeGraph(_numberOfVertices, _numberOfEdges);
string line;
while ((line = streamReader.ReadLine()) != null)
{
var splittedLine = line.Split(' ');
var edge = new DirectedWeightedEdge(Convert.ToInt32(splittedLine[0]),
Convert.ToInt32(splittedLine[1]),
Convert.ToDouble(splittedLine[2]));
AddEdge(edge);
}
}
}
catch (Exception ex)
{
throw new InvalidOperationException(ex.Message);
}
}
public void AddEdge(DirectedWeightedEdge edge)
{
int u = edge.From();
adjList[u].AddFirst(edge);
}