public void InvalidCell()
{
string puzzleString = "540070009000901000009460000050040020200000040910600785030590200000180006605200000";
SudokuPuzzle puzzle = new SudokuPuzzle(puzzleString);
Cell cell = new UserCell(2)
{
Value = 5
};
bool res = m_Validator.ValidateCell(puzzle, cell);
Assert.IsFalse(res);
}
//TODO: Solve from front and back to see if multiple solutions exist (throw exception)
public ISudokuPuzzle Solve()
{
if (!m_Validator.ValidateSudoku(m_Puzzle))
{
throw new InvalidPuzzleException();
}
int i = 0;
Cell[] userCells = m_Puzzle.Cells.Where(c => c is UserCell).ToArray();
while (i < userCells.Length)
{
if (i < 0)
{
throw new UnsolvablePuzzleException();
}
UserCell cell = userCells[i] as UserCell;
int val = cell.Value + 1;
if (val > 9)
{
cell.Value = 0;
i--;
continue;
}
cell.Value = val;
if (m_Validator.ValidateCell(m_Puzzle, cell))
{
i++;
}
}
return(m_Puzzle);
}
