public bool IsValidFor(ToyDistributionProblem problem)
{
bool b1 = List.Count == ToyDistributionProblem.ListLength;
bool b2 = List.Keys.Distinct().Count() == ToyDistributionProblem.ListLength;
bool b3 = List.Values.Distinct().Count() == ToyDistributionProblem.ListLength;
bool b4 = !problem.Toys.Except(List.Values.Select(y => new Toy(y))).Any();
bool b5 = !List.Values.Select(y => new Toy(y)).Except(problem.Toys).Any();
bool b6 = problem.Children.Aggregate(seed: true,
(result, child) => result &&
List.ContainsKey(child.Name) &&
child.WishList.Toys.Contains(new Toy(List[child.Name])));
return(b1 && b2 && b3 && b4 && b5 && b6);
}
public static ToyDistributionProblem Create()
{
while (true)
{
Toy[] toys = ToyNames.Select(x => new Toy(x)).ToArray();
Dictionary <string, Toy> toysDictionary = toys.ToDictionary(x => x.Name);
Child[] children = Names.Shuffle()
.Take(ListLength)
.Select(x => new Child(x, GetRandomWishList(toysDictionary.Select(t => t.Value).ToArray())))
.ToArray();
bool InternalCreate(out Child[] randomChildren1, out List <Toy> list)
{
randomChildren1 = children;
InterestingToy[] byInterest = InterestingToys(randomChildren1);
if (byInterest.Take(5).Any(x => x.Counter == 1))
{
randomChildren1 = null;
list = null;
return(false);
}
List <Toy> interestingToys = byInterest.SkipWhile(x => x.Counter > 2).Select(x => x.Toy).ToList();
list = new List <Toy>(ListLength);
foreach (Child c in randomChildren1.OrderBy(x => x.WishList.Toys.Count))
{
Toy first = c.WishList.Toys.FirstOrDefault(interestingToys.Contains);
if (first == null)
{
return(false);
}
interestingToys.Remove(first);
list.Add(first);
}
return(true);
}
if (InternalCreate(out Child[] randomChildren, out List <Toy> toyPool))
{
var problem = new ToyDistributionProblem
{
Children = randomChildren.Shuffle().ToArray(),
Toys = toyPool.Shuffle().ToArray(),
};
ToyDistributionProblem originalProblem = problem.DeepClone();
ToyDistributionSolution solution = problem.CreateSolution();
if (solution != null && solution.IsValidFor(originalProblem))
{
return(originalProblem);
}
}
// try again :D
}
}