def solveSudoku(self, board): """ :type board: List[List[str]] :rtype: void Do not return anything, modify board in-place instead. """ def solver(board): for pi,row in enumerate(board): for pj,c in enumerate(row): if c == '.': for x in set("123456789.")-set(board[pi])-set([board[k][pj] for k in range(9)])-set([board[pi/3*3+k1][pj/3*3+k2] for k1 in range(3) for k2 in range(3)]): board[pi][pj] = x if solver(board): return True board[pi][pj] = '.' return False return True solver(board)
Share my short solution in Python
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