Sudoku
Input format for lab: Puzzles will be composed of 9 lines, each of which contains 9 values separated by a space. For purposes of our software, values are either 19 (filled) or 0 (empty). A sample puzzle based on Figure 1 (previous page) is encoded below:
0 3 2 0 0 8 9 1 4 0 0 0 0 0 0 0 0 3 0 0 7 1 0 0 0 2 6 0 0 8 0 7 6 0 0 0 9 2 1 3 0 0 0 8 7 0 6 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 5 0 8 8 0 0 6 0 7 0 0 0