What is a nearly complete binary tree?
In this regard, what is a complete binary tree?
A full binary tree (sometimes proper binary tree or 2-tree) is a tree in which every node other than the leaves has two children. A complete binary tree is a binary tree in which every level, except possibly the last, is completely filled, and all nodes are as far left as possible.
Furthermore, what is the difference between complete binary tree and full binary tree?
A complete binary tree is a binary tree in which every level of the binary tree is completely filled except the last level. In the unfilled level, the nodes are attached starting from the left-most position. A full binary tree is a tree in which every node in the tree has two children except the leaves of the tree.
Types of binary trees include:
- Full binary tree: every node other than leaf nodes has 2 child nodes.
- Complete binary tree: all levels are filled except possibly the last one, and all nodes are filled in as far left as possible.
- Perfect binary tree: all nodes have two children and all leaves are at the same level.