## What is tree in algorithm?

A tree is a hierarchical data structure defined as a collection of nodes. Nodes represent value and nodes are connected by edges. A tree has the following properties: The tree has one node called root. The tree originates from this, and hence it does not have any parent.

**What is binary tree algorithm?**

A binary tree has a special condition that each node can have a maximum of two children. A binary tree has the benefits of both an ordered array and a linked list as search is as quick as in a sorted array and insertion or deletion operation are as fast as in linked list.

### What are the different types of trees in data structure?

Therefore, there are two types of skewed binary trees, i.e. left-skewed or the right-skewed binary tree. Balanced binary tree: The difference between the height of the left and right subtree for each node is either 0 or 1.

**What is graph in C?**

A graph consists of a set of nodes or vertices together with a set of edges or arcs where each edge joins two vertices. Unless otherwise specified, a graph is undirected: each edge is an unordered pair {u,v} of vertices, and we don’t regard either of the two vertices as having a distinct role from the other.

## What are trees in Python?

Trees are non-linear data structures that represent nodes connected by edges. Each tree consists of a root node as the Parent node, and the left node and right node as Child nodes.

**What is a null tree?**

Empty (Null)-tree: a tree without any node. Root-tree: a tree with only one node. Binary tree: a tree in which each node has at most two children (parent, left, and right) Two tree: a binary tree that either is empty or each non-leaf has two children.

### What is binary tree C++?

A Binary tree is a widely used tree data structure. When each node of a tree has at most two child nodes then the tree is called a Binary tree.