public static PathGenetic GenerateChild(Instance instance, Random rnd, PathGenetic mother, PathGenetic father, List <int>[] listArray)
{
PathGenetic child;
int[] pathChild = new int[instance.NNodes];
//This variable defines the point of breaking the path of the father and that of the mother
int crossover = (rnd.Next(0, instance.NNodes));
for (int i = 0; i < instance.NNodes; i++)
{
if (i > crossover)
{
pathChild[i] = mother.path[i];
}
else
{
pathChild[i] = father.path[i];
}
}
//With a probability of 0.01 we make a mutation
if (rnd.Next(0, 101) == 100)
{
Mutation(instance, rnd, pathChild);
}
//The repair method ensures that the child is a permissible path
child = Repair(instance, pathChild, listArray);
if (ProbabilityTwoOpt(instance, rnd) == 1)
{
child.path = InterfaceForTwoOpt(child.path);
TSP.TwoOpt(instance, child);
child.path = Reverse(child.path);
}
return(child);
}
static void Main(string[] args)
{
if (args.Length < 4)
{
throw new System.Exception("Input args should be at least 2");
}
//Writing the inpute parameters
if (VERBOSE >= 9)
{
Console.Write("Input parameters: ");
for (int i = 0; i < args.Length; i++)
{
Console.Write(args[i].ToString() + " ");
}
Console.WriteLine("\n\n\n");
}
/*
* Saving input parameters inside an Instance variable
* Attention: if file name or timilimit are missing
* an exception will be throw
*/
Instance inst = new Instance();
ParseInst(inst, args);
//Reading the input file and storing its data into inst
Populate(inst);
//Starting the clock
clock = new Stopwatch();
clock.Start();
//Starting the elaboration of the TSP problem
//The boolean returning value tells if everything went fine
if (!TSP.TSPOpt(inst, clock))
{
throw new System.Exception("Impossible to find the optimal solution for the given instance");
}
//Stopping the clock
clock.Stop();
//Printing the time needed to find the optimal solution
//If it's equal to the input timelimit the solution is not the optimal
Console.WriteLine("The optimal solution was found in " + clock.ElapsedMilliseconds / 1000.0 + " s");
//Only to check the output
Console.ReadLine();
foreach (string file in Directory.GetFiles(Directory.GetCurrentDirectory(), "*.dat").Where(item => item.EndsWith(".dat")))
{
File.Delete(file);
}
foreach (string file in Directory.GetFiles(Directory.GetCurrentDirectory(), "*.lp").Where(item => item.EndsWith(".lp")))
{
File.Delete(file);
}
}