public MatrixList(int[,] grid)
{
root = new MatrixNodeHead("root (h)");
MatrixNode currentNode = root;
for (int j = 0; j < grid.GetLength(1); j++)
{
currentNode.right = new MatrixNodeHead("" + j);
currentNode.right.left = currentNode;
currentNode = currentNode.right;
currentNode.up = currentNode;
currentNode.down = currentNode;
}
currentNode.right = root;
root.left = currentNode;
MatrixNode[] prevNode = new MatrixNode[grid.GetLength(0)];
currentNode = root;
int cpt;
for (int j = 0; j < grid.GetLength(1); j++)
{
cpt = 0;
//Console.WriteLine(((MatrixNodeHead)currentNode).name);
currentNode = currentNode.right;
for (int i = 0; i < grid.GetLength(0); i++)
{
if (grid[i, j] == 1)
{
MatrixNode tmp = new MatrixNode((MatrixNodeHead)currentNode.down);
tmp.rowIndex = i;
cpt++;
tmp.down = currentNode.down;
currentNode.down = tmp;
tmp.up = currentNode;
if (prevNode[i] == null)
{
((MatrixNodeHead)tmp.down).item = tmp;
tmp.right = tmp;
tmp.left = tmp;
prevNode[i] = tmp;
}
else
{
tmp.left = prevNode[i];
tmp.right = prevNode[i].right;
tmp.right.left = tmp;
prevNode[i].right = tmp;
prevNode[i] = tmp;
}
currentNode = currentNode.down;
}
}
currentNode.down.up = currentNode;
currentNode = currentNode.down;
((MatrixNodeHead)currentNode).size = cpt;
}
}
private void search(int k)
{
if (root.right == root)
{
//rowIndexes = new LinkedList<int>(rows);
stop = true;
//Console.WriteLine("yes : " + rows.Count);
return;
}
MatrixNodeHead selected = (MatrixNodeHead)root.right;
int c = selected.size;
for (MatrixNodeHead currentNode = (MatrixNodeHead)root.right; currentNode != root; currentNode = (MatrixNodeHead)currentNode.right)
{
if (c > currentNode.size)
{
c = currentNode.size;
selected = currentNode;
}
}
cover(selected);
for (MatrixNode iNode = selected.down; iNode != selected; iNode = iNode.down)
{
//rows.AddLast(iNode.rowIndex);
O.AddLast(iNode);
for (MatrixNode jNode = iNode.right; jNode != iNode; jNode = jNode.right)
{
cover(jNode.item);
}
search(k + 1);
if (stop)
{
return;
}
//rows.RemoveLast();
O.RemoveLast();
for (MatrixNode jNode = iNode.left; jNode != iNode; jNode = jNode.left)
{
uncover(jNode.item);
}
}
uncover(selected);
return;
}
private void search(int k) // algorithme de resolution
{
if (root.right == root) // matrice vide
{
stop = true;
return;
}
MatrixNodeHead selected = (MatrixNodeHead)root.right;
int c = selected.size;
for (MatrixNodeHead currentNode = (MatrixNodeHead)root.right; currentNode != root; currentNode = (MatrixNodeHead)currentNode.right)
{
if (c > currentNode.size)
{
c = currentNode.size;
selected = currentNode;
}
}
cover(selected);
for (MatrixNode iNode = selected.down; iNode != selected; iNode = iNode.down)
{
//rows.AddLast(iNode.rowIndex);
O.AddLast(iNode);
for (MatrixNode jNode = iNode.right; jNode != iNode; jNode = jNode.right)
{
cover(jNode.item);
}
search(k + 1);
if (stop)
{
return;
}
//rows.RemoveLast();
O.RemoveLast();
for (MatrixNode jNode = iNode.left; jNode != iNode; jNode = jNode.left)
{
uncover(jNode.item);
}
}
uncover(selected);
return;
}
private void uncover(MatrixNodeHead node)
{
///Console.WriteLine("depart : " + node.name);
for (MatrixNode iNode = node.down; iNode != node; iNode = iNode.down)
{
for (MatrixNode jNode = iNode.right; jNode != iNode; jNode = jNode.right)
{
jNode.up.down = jNode;
jNode.down.up = jNode;
jNode.item.size++;
//Console.WriteLine("ici : "+ currentNode.item.name);
}
//Console.WriteLine("Balade : " + ((MatrixNodeHead)currentNode).name);
}
node.left.right = node;
node.right.left = node;
}
public MatrixList()
{
root = new MatrixNodeHead("");
root.right = root;
root.left = root;
}
public MatrixList(int[][] sudoku)
{
this.sudoku = sudoku;
MatrixNode[] tmp = new MatrixNode[9 * 9 * 4];
root = new MatrixNodeHead("root (h)");
MatrixNode currentNode = root;
for (int j = 0; j < 324; j++)
{
currentNode.right = new MatrixNodeHead("" + j);
currentNode.right.left = currentNode;
currentNode = currentNode.right;
currentNode.rowIndex = j;
currentNode.up = currentNode;
currentNode.down = currentNode;
tmp[j] = currentNode;
}
currentNode.right = root;
root.left = currentNode;
int imatrix = 0;
for (int i = 0; i < 9; i++)
{
for (int j = 0; j < 9; j++)
{
int value = sudoku[i][j];
MatrixNode tmpRCCNode;
MatrixNode tmpRNCNode;
MatrixNode tmpCNCNode;
MatrixNode tmpBNCNode;
if (value == 0)
{
value = 1;
int RCC = calcRCConstrain(i, j);
int RNC = calcRNConstrain(i, value);
int CNC = calcCNConstrain(j, value);
int BNC = calcBNConstrain(i, j, value);
int end = imatrix + 9;
for (; imatrix < end; imatrix++)
{
tmpRCCNode = new MatrixNode((MatrixNodeHead)tmp[RCC].down);
tmpRNCNode = new MatrixNode((MatrixNodeHead)tmp[RNC].down);
tmpCNCNode = new MatrixNode((MatrixNodeHead)tmp[CNC].down);
tmpBNCNode = new MatrixNode((MatrixNodeHead)tmp[BNC].down);
tmpRCCNode.rowIndex = i;
tmpRCCNode.column = j;
tmpRCCNode.value = value;
tmpRNCNode.rowIndex = i;
tmpRNCNode.column = j;
tmpRNCNode.value = value;
tmpCNCNode.rowIndex = i;
tmpCNCNode.column = j;
tmpCNCNode.value = value;
tmpBNCNode.rowIndex = i;
tmpBNCNode.column = j;
tmpBNCNode.value = value++;
((MatrixNodeHead)tmp[RCC].down).size++;
((MatrixNodeHead)tmp[RNC].down).size++;
((MatrixNodeHead)tmp[CNC].down).size++;
((MatrixNodeHead)tmp[BNC].down).size++;
tmpRCCNode.right = tmpRNCNode;
tmpRNCNode.right = tmpCNCNode;
tmpCNCNode.right = tmpBNCNode;
tmpBNCNode.right = tmpRCCNode;
tmpBNCNode.left = tmpCNCNode;
tmpCNCNode.left = tmpRNCNode;
tmpRNCNode.left = tmpRCCNode;
tmpRCCNode.left = tmpBNCNode;
tmpRCCNode.up = tmp[RCC];
tmpRCCNode.down = tmp[RCC].down;
tmp[RCC].down = tmpRCCNode;
tmp[RCC] = tmpRCCNode;
tmpRNCNode.up = tmp[RNC];
tmpRNCNode.down = tmp[RNC].down;
tmp[RNC].down = tmpRNCNode;
tmp[RNC++] = tmpRNCNode;
tmpCNCNode.up = tmp[CNC];
tmpCNCNode.down = tmp[CNC].down;
tmp[CNC].down = tmpCNCNode;
tmp[CNC++] = tmpCNCNode;
tmpBNCNode.up = tmp[BNC];
tmpBNCNode.down = tmp[BNC].down;
tmp[BNC].down = tmpBNCNode;
tmp[BNC++] = tmpBNCNode;
}
}
else
{
int RCC = calcRCConstrain(i, j);
int RNC = calcRNConstrain(i, value);
int CNC = calcCNConstrain(j, value);
int BNC = calcBNConstrain(i, j, value);
tmpRCCNode = new MatrixNode((MatrixNodeHead)tmp[RCC].down);
tmpRNCNode = new MatrixNode((MatrixNodeHead)tmp[RNC].down);
tmpCNCNode = new MatrixNode((MatrixNodeHead)tmp[CNC].down);
tmpBNCNode = new MatrixNode((MatrixNodeHead)tmp[BNC].down);
tmpRCCNode.rowIndex = i;
tmpRCCNode.column = j;
tmpRCCNode.value = value;
tmpRNCNode.rowIndex = i;
tmpRNCNode.column = j;
tmpRNCNode.value = value;
tmpCNCNode.rowIndex = i;
tmpCNCNode.column = j;
tmpCNCNode.value = value;
tmpBNCNode.rowIndex = i;
tmpBNCNode.column = j;
tmpBNCNode.value = value;
tmpRCCNode.right = tmpRNCNode;
tmpRNCNode.right = tmpCNCNode;
tmpCNCNode.right = tmpBNCNode;
tmpBNCNode.right = tmpRCCNode;
tmpBNCNode.left = tmpCNCNode;
tmpCNCNode.left = tmpRNCNode;
tmpRNCNode.left = tmpRCCNode;
tmpRCCNode.left = tmpBNCNode;
tmpRCCNode.up = tmp[RCC];
tmpRCCNode.down = tmp[RCC].down;
tmp[RCC].down = tmpRCCNode;
tmp[RCC] = tmpRCCNode;
tmpRNCNode.up = tmp[RNC];
tmpRNCNode.down = tmp[RNC].down;
tmp[RNC].down = tmpRNCNode;
tmp[RNC++] = tmpRNCNode;
tmpCNCNode.up = tmp[CNC];
tmpCNCNode.down = tmp[CNC].down;
tmp[CNC].down = tmpCNCNode;
tmp[CNC++] = tmpCNCNode;
tmpBNCNode.up = tmp[BNC];
tmpBNCNode.down = tmp[BNC].down;
tmp[BNC].down = tmpBNCNode;
tmp[BNC++] = tmpBNCNode;
imatrix++;
}
}
}
}
public MatrixNode(MatrixNodeHead t)
{
item = t;
}
