public void Test_That_Knapsack_Load_Works()
{
Knapsack knapsack = new Knapsack();
knapsack.Load("Data/Knapsacks/json/mknapcb1/mknapcb1-1.json");
Assert.AreNotEqual(knapsack.weights.Count, 0);
Console.WriteLine(JsonConvert.SerializeObject(knapsack, Formatting.Indented));
}
public void Test_That_Knapsack_Hill_Climbing_Works()
{
Knapsack knapsack = new Knapsack();
knapsack.Load(Constants.SAMPLE_MKNAPCB4_DATASET);
HillClimb <List <int> > hillClimb = new HillClimb <List <int> >();
hillClimb.create(knapsack.getConfiguration());
List <int> finalSolution = hillClimb.fullIteration();
}
public void Test_That_Knapsack_Get_Initial_Solution_Works()
{
Knapsack knapsack = new Knapsack();
for (int i = 1; i <= 5; i++)
{
knapsack.Load($"Data/Knapsacks/json/mknapcb1/mknapcb1-{i}.json");
for (int length = 1; length <= 5; length++)
{
List <int> sol = knapsack.getInitialSolution(length);
Console.WriteLine($"{i}\tSolution: " + JsonConvert.SerializeObject(sol));
Assert.AreEqual(sol.Count, length);
double fitness = knapsack.getFitness(sol);
Console.WriteLine($"{i}\tFitness: " + fitness);
}
}
}
public List <Knapsack> readProblem(string filename)
{
int countMaxWeights = 0;
int countItemsWeights = 0;
int stage = 0;
string[] lines = System.IO.File.ReadAllLines(filename);
var ret = new List <Knapsack>();
Knapsack knapsack = new Knapsack();
int knapsacks_count = Convert.ToInt32(lines.FirstOrDefault());
for (int k = 1; k <= knapsacks_count; k++)
{
int i = 1;
foreach (string s_loopVariable in lines.Skip(1))
{
string s = s_loopVariable;
s = s.Trim();
string[] ss = s.Split(' ');
if (i == 1)
{
knapsack.noOfKnapsacks = Convert.ToInt32(ss[1]);
knapsack.noOfItems = Convert.ToInt32(ss[0]);
if (ss.Length > 2)
{
knapsack.goal = Convert.ToInt32(ss[2]);
}
i += 1;
//first stage
}
else if (i == 2)
{
if (knapsack.items.Count() < knapsack.noOfItems)
{
foreach (string sss_loopVariable in ss)
{
string sss = sss_loopVariable;
knapsack.items.Add(new Knapsack.Item(Convert.ToDouble(sss), new List <double>()));
}
}
else
{
i += 1;
}
}
if (i == 3)
{
if (countItemsWeights < knapsack.noOfKnapsacks)
{
for (int index = 0; index <= ss.Length - 1; index++)
{
knapsack.items[stage].weights.Add(Convert.ToDouble(ss[index]));
stage += 1;
}
if (stage == knapsack.noOfItems)
{
countItemsWeights += 1;
stage = 0;
}
}
else
{
i += 1;
}
}
if (i == 4)
{
if (countMaxWeights < knapsack.noOfKnapsacks)
{
foreach (string sss_loopVariable in ss)
{
string sss = sss_loopVariable;
knapsack.weights.Add(Convert.ToDouble(sss));
countMaxWeights += 1;
}
}
else
{
i += 1;
}
}
}
ret.Add(knapsack);
}
return(ret);
}
