pairing in a list

[jakemace]

1. How is this different from your other thread? I merge both threads
2. You keep saying - I don't know how. Maybe you need to consult your learning materials or find a tutorial

One is about the algorithm of swiss pairing. The second is about pairing values in a list according to their criterion. After request, I gave the example as swiss pairing. If you know good learning materials for my topic, why don't you share. And If I knew, why would I open a thread? Just delete the thread if you like.