Given a binary tree root, a node X in the tree is named good if in the path from root to X there are no nodes with a value greater than X. Return the number of good nodes in the binary tree. Whenever ...

Given the root of a binary tree, the value of a target node target, and an integer k, return an array of the values of all nodes that have a distance k from the ...

I have two trees that I am implementing using the defaultMutableTreeNode Class. I need to be able to point to certain nodes in the second tree from the first in order to be able to move from that node ...