public void ExactCoverTest()
{
var sut = new DancingLinks();
var xKeys = sut.BuildSetMatrixKeys(4);
var y = sut.BuildSubsetMatrix(4, 2, 2);
var x = sut.ExactCover(xKeys, y);
x.Dump(TestContext.WriteLine, $"Dumping x, item count = {x.Count}");
}
public void BuildSubsetMatrixTest1()
{
var sut = new DancingLinks();
var actualY = sut.BuildSubsetMatrix(4, 2, 2);
Assert.AreEqual(64, actualY.Count);
actualY.Dump(TestContext.WriteLine, $"Dumping actualY, item count = {actualY.Count}");
}
public void BuildSetMatrixKeysTest1()
{
var sut = new DancingLinks();
var actualXKeys = sut.BuildSetMatrixKeys(4);
Assert.AreEqual(64, actualXKeys.Count);
actualXKeys.Dump(TestContext.WriteLine, $"Dumping actualXKeys, item count = {actualXKeys.Count}");
}
static void Main(string[] args)
{
foreach (var puzzle in TestPuzzles.puzzles)
{
var dancingLinks = new DancingLinks(puzzle);
dancingLinks.Solve();
// var board = new Board(puzzle);
// var backtrack = new Backtrack(board);
// backtrack.Solve();
}
}
public void LoadCaseToSolveTest()
{
var grid = new[]
{
new[] { 1, 0, 3, 4 },
new[] { 3, 4, 1, 2 },
new[] { 2, 1, 4, 3 },
new[] { 4, 3, 2, 1 }
};
var sut = new DancingLinks();
var xKeys = sut.BuildSetMatrixKeys(4);
var y = sut.BuildSubsetMatrix(4, 2, 2);
var x = sut.ExactCover(xKeys, y);
sut.LoadCaseToSolve(grid, x, y);
x.Dump(TestContext.WriteLine, $"Dumping x, item count = {x.Count}");
}
void OnMouseUpAsButton()
{
char[] upperRow = Canvas.upperRow;
char[] leftColumn = Canvas.leftColumn;
char[] lowerRow = Canvas.lowerRow;
char[] rightColumn = Canvas.rightColumn;
Matrix m = new Matrix(Canvas.N, Canvas.numberOfLetters, upperRow, leftColumn, lowerRow, rightColumn);
DancingLinks dl = new DancingLinks(m);
dl.Solver3();
char[,] solution = dl.OutSolution();
for (int i = 0; i < Canvas.N; i++)
{
for (int j = 0; j < Canvas.N; j++)
{
string s = "(" + i.ToString() + "," + j.ToString() + ")";
//GameObject Letter = GameObject.Find("Canvas/Field/(1,1)");
GameObject Letter = Field.transform.Find(s).gameObject;
Letter.GetComponentInChildren <Text>().text = solution[i, j].ToString();
}
}
}
public void DancingLinksConversionTest1()
{
var sut = new DancingLinks();
var grid = new[]
{
new[] { 5, 3, 0, 0, 7, 0, 0, 0, 0 },
new[] { 6, 0, 0, 1, 9, 5, 0, 0, 0 },
new[] { 0, 9, 8, 0, 0, 0, 0, 6, 0 },
new[] { 8, 0, 0, 0, 6, 0, 0, 0, 3 },
new[] { 4, 0, 0, 8, 0, 3, 0, 0, 1 },
new[] { 7, 0, 0, 0, 2, 0, 0, 0, 6 },
new[] { 0, 6, 0, 0, 0, 0, 2, 8, 0 },
new[] { 0, 0, 0, 4, 1, 9, 0, 0, 5 },
new[] { 0, 0, 0, 0, 8, 0, 0, 7, 9 }
};
var solution = sut.SolveSudoku((3, 3), grid).ToList();
// should be one and only one solution for a valid Sudoku
Assert.AreEqual(1, solution.Count);
solution.First().Dump(TestContext.WriteLine, @"9x9 Solution");
}
