internal static bool IsPuzzleSolved(SudokuPuzzle sudokuPuzzle)
{
for (int i = 0; i < NumberOfRowsOrColumnsInPuzzle; i++)
{
var row = sudokuPuzzle.Rows[i];
var isValidRow = AreRowOrColumnCellsValid(row.Cells);
var column = sudokuPuzzle.Columns[i];
var isValidColumn = AreRowOrColumnCellsValid(column.Cells);
if (!isValidRow || !isValidColumn)
{
return(false);
}
}
return(true);
}
internal static string PuzzleToString(SudokuPuzzle sudokuPuzzle)
{
var sb = new StringBuilder();
var rowCount = sudokuPuzzle.Cells.GetLength(0);
var columnCount = sudokuPuzzle.Cells.GetLength(1);
for (int i = 0; i < rowCount; i++)
{
for (int j = 0; j < columnCount; j++)
{
var prefix = (j == 0 ? "" : " ");
sb.Append($"{prefix}{sudokuPuzzle.Cells[i, j].Value}");
}
sb.Append(Environment.NewLine);
}
return(sb.ToString());
}
