Given a binary tree, find the length of the diameter of the tree. The diameter of a tree is the length of the longest path between any two nodes in a tree. This path may or may not pass through the root.

Question

Accepted Answer

The diameter of a tree is the longest path between any two nodes in the tree.

The diameter can be found using Depth First Search (DFS) or Breadth First Search (BFS).
It is defined as the maximum distance between any two nodes in the tree.
For example, in a tree with nodes A, B, C, D, and E, if the longest path is A-B-C-D-E, then the diameter is 4.
The diameter can also be calculated as the sum of the heights of the two deepest subtrees of the root.

Asked in Amazon and 10 others

Given a binary tree, find the length of the diameter of the tree. The diameter of a tree is the length of the longest path between any two nodes in a tree. This path may or may not pass through the root.

Interview Questions from Popular Companies