Confusing question: HOW ARE THE BLANKS CHOSEN?

Let's see example
2 3 4 - initial blanks
I choose blanks 2 and 4 - they are different so I cut off piece of length 2 from the long blank (4).
After that we have blanks: 2 3 2 - two blanks coincide so one is eliminated: 2 3 they are different so we cut of blank with length 3. We have: 2 1. Cut again we have 1 1. Eliminate one blank and we get a result - 1.

You may try other ways to choose blank - but you will get same answer. So,
NO MATTER HOW TO CHOOSE 2 blanks.

Moral: What is not said does not matters ;)

By the way algorithm is very very easy... try to think

Captain Obvious

Edited by author 04.10.2010 16:51