数独深搜——dfs

最近一做题就想去打球,然而做题等于坐牢（别给我推DIV1了，会谢），打球等于坐牢后被暴打 数独（POJ3074） Description In the game of Sudoku, you are given a large 9 × 9 grid divided into smaller 3 × 3 subgrids. Given some of the numbers in the grid, your goal is to determine the remaining numbers ...