a016: 數獨(SUDOKU)

https://zerojudge.tw/ShowProblem?problemid=a016

• def there_is_repeat_in_(a_list):
•   return True if len(set(a_list)) < 9 else False
• while True:
•   try:
•     matrix_9x9 = [ input().split() for _ in range(9) ]
•     for row in matrix_9x9:
•       if there_is_repeat_in_(row):
•         print(’no’)
•         break
•     else:
•       for i,j in zip([0,0,0,3,3,3,6,6,6],[0,3,6]*3):
•         matrix_3x3 = matrix_9x9[i][j:j+3] + matrix_9x9[i+1][j:j+3] + matrix_9x9[i+2][j:j+3]
•         if there_is_repeat_in_(matrix_3x3):
•           print(’no’)
•           break
•       else:
•         print(’yes’)
•     input() # 輸入中的任兩個矩陣中間有一個空行要已讀它
•   except:
•     break