December 2018
 

[url]http://www.research.ibm.com/haifa/ponderthis/challenges/December2018.html[/url]

Quadratic sieve, haha. Pairing relations to get a difference of squares...

Skip. Boring. [STRIKE](circles)[/STRIKE]
We better concentrate in finding a nice solution to the former one with the triangles (which we didn't solve due to unavailability of time and intelligence, and it is still sticking to our head, we don't know why).
(we use royal we here, you do whatever fits you better...)

IBM Ponder This December 2018
 

The question is not Boring. do not skip!

It's not a question of circles, but of cycles.
factors of small numbers primes

Try to understand the problem with the example given by the question file attached Excel.

the question It's really intressant.
I would give an algorithm after the solution that allowed me to solve the question.

:smile:

[url]http://www.research.ibm.com/haifa/ponderthis/solutions/December2018.html[/url]

IBM Ponder This December 2018
 

[url]https://www.youtube.com/watch?v=QycP4HE8w9U[/url]

Congratulations. I see your name with a star.


The "boring" part was more like a word play related to the terminology they used. I didn't say that the problem was "boring". Old salts here know me already. If I say "skip", it could also mean that I am not able to solve it :razz: (either due to the fact that real life won't let me to invest the time, of due to the fact that I am not clever enough).



But your video is boring! :razz:

I think sometimes when we read a question for the first time we can be discouraged. It is not a question of incapacity but of the state of mental in this moment and the technical soft/hard we dispose. imagine ten years ago a first of 100,000 digits was an exploit today it is an almost ordinary number.

I know m'y vidéo is Boeing !
This is only a code execution. This avoids doing it either. What matters on this kind of exercise is the function manipulation.[I][/I]