Problem about the example of HW3

Question

[ (4, ['0001', '0011', '1100' ]),
      (5, ['011', 1000', '110' ]),
      (6, ['0000', '111']),
      (7, ['0010','1001' ]),
      (8, ['0100']),
      (10,['010']),
      (11,['000', '001', '11']),
      (12,['100']),
      (15,['01','10']),
      (23,['00'])
    ]

this is the list that should return according to the exercise, but there is a missing "1101" that appearead once.  Am I wrong or the example is incorrect?

Answer 1

Yes professor Sterbini wrote that the example is wrong.

Answer 2

Please read the HW3 topic notes https://q2a.di.uniroma1.it/22677