Introduction - If you have any usage issues, please Google them yourself
Sudoku filled game, we want to ensure that each row, each column, each box number 1 .. 9 occurs exactly once. ★ data input for the input data include 9 rows and 9, by the numbers 1 .. 9, and ' .' , And ' .' Represents an unfilled digital lattice. The input data assurance solutions only exist. ★ data output the result of the program output line 9 9 blank Sudoku grid is filled with the correct number.