onigame - 2017-10-07 6:21 AM

The book defines "Arithmetic Progression" as
"A sequence of digits are in arithmetic progression if every consecutive pair of digits in the sequence have the same difference. The difference cannot be 0."

According to this definition, 2,4,6,4,6,4,6,8,6,4,2,4,6 would be an Arithmetic Progression.

I'm thinking it's safe to assume that the definition is imprecise and that consecutive pairs of digits need to have the same difference in the same direction for it to be an arithmetic progression, but please let us know if there is a chance of a "trick" here.

may

Para - 2017-10-08 5:15 PM

Just a general question. Will the Instruction Booklets handed out at the WSC be the latest possible version or have they already been printed?
If they are already printed, is it possible to print an addendum page to be handed with any corrections or clarifications that have been made here since the printing?