On 11/3/06, Derek <[EMAIL PROTECTED]> wrote:
Just out of curiosity, which of the following lines match?
0
1
1000000

From the problem statement:

"The definition implies that any sequence of a single integer is a match."

Why? Because anything that does not *fail* passes. By the problem definition:

"We are looking for sequences of n > 0 integers where the absolute values
of the differences of successive elements are included in the set of
numbers 1 through n - 1."

So a sequence only fails when:

* n == 0 (n < 0 doesn't make much sense)
* a pair of elements have a delta outside [1, n)

Since 1 != 0 and there are not pairs of elements with a delta outside
[1, n), the sequence is a match.

Jacob Fugal

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