The hierarchical arrangement of the data is considered as the tree structure.

Unlike Array and Linked List, which are linear data structures, tree is hierarchical (or non-linear) data structure.

Tree is the Non-linear data structure.

Implementation of the tree is possible by both array and Linked list

But linked list is more popular and useful method.

**
Important Terms:**

Binary Search Tree

AVL Tree

Complete Binary Tree

Full Binary Tree

Heap Tree

Spanning Tree

To represent an image in the form of a bitmap.

To implement the undo function in a text editor.

Your file system is a tree structure.

- Introduction to Tree Data Structure
- Binary Tree in Data structure
- Binary search Tree in Data structure
- AVL tree in data structure
- Complete binary search in data structure
- Full Binary Tree in Data structure
- Heap Tree in Data Structure
- Minimum Spanning Tree
- Introduction to graph
- DFS algorithms
- BFS algorithms

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