Link/cut tree

A link/cut tree is a very special kind of tree made up of lots of little nodes that are all connected together in a specific way. Think of it like a big puzzle made up of smaller pieces.

Each little node in the tree has a special job, and it's connected to other nodes in a certain way. The links between nodes show how they're connected, and they can be cut or broken to change the way the tree looks.

The interesting thing about link/cut trees is that they can be changed really quickly and easily. That's because when you cut a link between two nodes, the tree sort of falls apart into smaller pieces. But you can also put it back together just as easily by reconnecting the pieces with new links.

So, to summarize: A link/cut tree is like a big puzzle made up of lots of little pieces (nodes) that are connected by links. You can change the way the tree looks by cutting or reconnecting those links, and it's really easy to do!