**What Is Linear and Non-Linear Data Structure? Give Example.**

Data structures are an essential concept in computer science and programming. They help organize and store data efficiently, making it easier to access, manipulate, and analyze.

In this article, we will explore two fundamental types of data structures: linear and non-linear data structures. We will also provide examples to help you understand these concepts better.

## Linear Data Structures

__Linear data structures__ are those in which the elements are arranged in a sequential manner. Each element has a unique predecessor and successor, except for the first and last elements. These structures follow a specific order, allowing easy traversal from one element to another in a linear fashion.

### Examples of Linear Data Structures:

**Arrays:**An array is a collection of similar elements stored at contiguous memory locations. Elements can be accessed using their index value.**Linked Lists:**A linked list consists of nodes where each node contains data and a reference to the next node. It allows dynamic memory allocation.**Stacks:**A stack is a Last-In-First-Out (LIFO) data structure where insertion (push) and deletion (pop) operations occur at one end called the top.**Queues:**A queue is a First-In-First-Out (FIFO) data structure that allows insertion at one end called the rear and deletion at the other end called the front.

## Non-Linear Data Structures

__Non-linear data structures__, unlike linear ones, do not follow a sequential order. They represent a more complex relationship between elements, where each element can have multiple predecessors and successors.

### Examples of Non-Linear Data Structures:

**Trees:**A tree is a hierarchical data structure consisting of nodes connected by edges. Each node can have multiple children but only one parent, except for the root node.**Graphs:**A graph consists of a set of vertices connected by edges. It represents relationships between different elements.

Non-linear data structures are often used in scenarios where hierarchical or complex relationships need to be represented and analyzed efficiently.

In conclusion, understanding the difference between linear and non-linear data structures is crucial for designing efficient algorithms and solving problems in computer science. Linear structures have a sequential order, while non-linear structures have more complex relationships between elements. By using the appropriate data structure based on the problem requirements, you can optimize memory usage and improve the efficiency of your programs.