What Is Types of Tree in Data Structure?


Heather Bennett

Data structures are an essential part of computer science and programming. They provide a way to organize and store data efficiently, allowing for faster access and manipulation. One commonly used data structure is the tree, which is a hierarchical structure that resembles an upside-down tree with a root at the top.

Types of Trees

Trees can be categorized into different types based on their properties and characteristics. Let’s explore some of the most common types of trees:

Binary Tree

A binary tree is a type of tree where each node has at most two children, referred to as the left child and the right child. The left child represents descendants that are smaller or less than the parent node, while the right child represents descendants that are larger or greater than the parent node.


  • Consider a binary tree with nodes containing integers.
  • The root node contains the value 5.
  • The left child contains the value 3, and the right child contains the value 8.
  • The left child of 3 contains the value 2, and its right child is empty.

Binary Search Tree (BST)

A binary search tree (BST) is a variant of a binary tree that follows specific ordering rules. In a BST, for any given node:

  • All nodes in its left subtree have values less than its own value.
  • All nodes in its right subtree have values greater than its own value.

This property allows for efficient searching, insertion, and deletion operations in logarithmic time complexity.

Balanced Tree

A balanced tree is a type of tree where the height difference between the left and right subtrees of any node is minimal. This ensures that the tree remains balanced, preventing performance issues that may arise from heavily skewed trees.

Some popular types of balanced trees include:

  • AVL trees
  • Red-black trees
  • B-trees


A heap is a complete binary tree that satisfies the heap property. The heap property states that for any given node, its value is either greater than or equal to (in a max-heap) or less than or equal to (in a min-heap) the values of its children.

Heaps are commonly used for implementing priority queues and sorting algorithms like heap sort.


Trees are versatile data structures that find applications in various fields of computer science. Understanding the different types of trees and their properties can help you choose the most suitable data structure for your specific needs.

Remember to consider factors such as efficiency, search and insertion times, and memory usage when selecting a tree type for your programming projects.

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