Re: Does the number of nines increase?

"Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> writes:

On 7/10/2024 5:32 PM, Ben Bacarisse wrote:

"Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> writes:

[...]

For example, with these tiles, the sequence 1, 2, 1, 3 produces

>
>

   aa    bb    aa    abb
   aab   ba    aab    b

>
r[0] = aa
r[1] = bb
r[3] = abb
r[4] = aab
r[5] = ba
r[6] = b
>
Where:
>
r[0]  r[1]  r[0]  r[3]
r[4]  r[5]  r[4]  r[6]
>
>
Is a legit mapping?

I have no idea why you numbered the strings like that.  In C I might
represent this example as:

  struct {
    char *top, *bottom;
  } tiles[3] = {
    { "",    ""    },  // dummy entry so we can use numbers 1 to 3
    { "aa",  "aab" },
    { "bb",  "ba"  },
    { "abb", "b"   }
  };

and there is a solution because the concatenation of

  tile[1].top, tile[2].top, tile[1].top, tile[3].top

and

  tile[1].bottom, tile[2].bottom, tile[1].bottom, tile[3].bottom

are the same string.  The solution being the sequence of indexes 1, 2,
1, 3.

Is that any help?

--
Ben.