# AlgorithmsThread Episode 7: All Point Pairs

Hi everyone! I just published Episode 7 of AlgorithmsThread, which talks about processing all pairs of points, while keeping the rest of the points sorted in a helpful way. I talk about the following problems in it:

- Biggest Triangle in a set of points
- Smallest Triangle in a set of points
- Number of pairs of non-intersecting triangles
- Minimum Area Quadrilateral in a set of points

I find this to be a really helpful trick that isn't super well known, so feel free to check it out if any of these sound like things you want to learn!

## Problem Links:

Feel free to post any questions below!

Thanks for sharing the gem.

Auto comment: topic has been updated by SecondThread (previous revision, new revision, compare).What are the etymologies of the names "Algorithms Dead" and "AlgorithmsThread"?

Also, wanted to add that I watched some of this video and thought it was well-presented! I liked how you explained the motivation behind some of the ideas & used drawing extensively. What software/hardware are you using for the drawing? (I assume you're using OBS for the recording?)

Derived from Algorithms Live and his handle name I guess.

Oh cool, thanks! I hadn't heard of Algorithms Live before, but I see the connection now. :P

Yep, originally it was Algorithms Dead as a pun on Algorithms Live. Then I changed it to AlgorithmsThread because that sounds a bit cooler I think.

Here's another good problem on this technique: 1019D - Large Triangle

I wrote up an explanation of that problem here: https://codeforces.com/blog/entry/61144