public void TestPermute(IEnumerable <int> input, int expectedCount)
{
// IEnumerable<int> input = new List<int>() {1,2,3};
List <int> numbersList = input.ToList();
IEnumerable <IList <int> > output = Helper.Permute(numbersList, numbersList.Count);
Assert.True(output.Count() == expectedCount);
}
private IEnumerable <NumbersSolution> GetSolutions(int target, IEnumerable <int> numbers)
{
List <INode> nodes = new List <INode>();
CollectionsHelper collectionsHelper = new CollectionsHelper();
List <int> numbersList = numbers.ToList();
IEnumerable <IList <int> > permutations = collectionsHelper.Permute(numbersList, numbersList.Count);
foreach (IEnumerable <int> permutation in permutations)
{
nodes.AddRange(GetNodes(permutation.ToList()));
}
IEnumerable <NumbersSolution> solutions = nodes.Select(n => new NumbersSolution(target, n)).OrderBy(solution => solution.Closeness);
return(solutions);
}