[Leetcode][python]Valid Sudoku/有效的数独

class Solution(object):
    def isValidSudoku(self, board):
        """
        :type board: List[List[str]]
        :rtype: bool
        """
        seen = set()
        for i in range(9):
            for j in range(9):
                c = board[i][j]
                if c == '.':
                    continue
                if (i, c) in seen or (c, j) in seen or (i/3, j/3, c) in seen:
                    return False
                seen.add((i, c))
                seen.add((c, j))
                seen.add((i/3, j/3, c))
        return True

class Solution(object):
    def isValidSudoku(self, board):
        """
        :type board: List[List[str]]
        :rtype: bool
        """
        Sudoku_dict = {'row_0':[], 'row_1':[], 'row_2':[], 'row_3':[], 'row_4':[], 'row_5':[], 'row_6':[], 'row_7':[], 'row_8':[],
                       'col_0':[], 'col_1':[], 'col_2':[], 'col_3':[], 'col_4':[], 'col_5':[], 'col_6':[], 'col_7':[], 'col_8':[],
                       'squ_00':[], 'squ_01':[], 'squ_02':[], 'squ_10':[], 'squ_11':[], 'squ_12':[], 'squ_20':[], 'squ_21':[], 'squ_22':[]}
        for i in range(9):
            for j in range(9):
                if board[i][j]=='.':
                    continue
                temp = board[i][j]
                row_name = 'row_' + str(i)
                col_name = 'col_' + str(j)
                squ_name = 'squ_' + str((i)/3) + str((j)/3)
                # print row_name, col_name, squ_name
                if temp in Sudoku_dict[row_name]:
                    return False
                else:
                    Sudoku_dict[row_name].append(temp)
                if temp in Sudoku_dict[col_name]:
                    return False
                else:
                    Sudoku_dict[col_name].append(temp)
                if temp in Sudoku_dict[squ_name]:
                    return False
                else:
                    Sudoku_dict[squ_name].append(temp)
        # print Sudoku_dict
        return True