Why is this case expect true?


  • 0
    G

    OJ expects this case to be true:

    [".87654321","2........","3........","4........","5........","6........","7........","8........","9........"]

    To me, this seems an invalid case where the very first element board [0, 0] has problem with either 1st row or 1st column.

    Please help.

    Thanks,


  • 1
    C

    This is an unsolvable, but valid case. "solvable" and "valid" they are different.


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