How Do I Start Learning Data Structure?


Larry Thompson

Learning data structures is essential for any programmer or computer science enthusiast. Data structures allow us to efficiently store and organize data, enabling us to solve complex problems and optimize our code.

If you’re wondering how to start learning data structures, you’ve come to the right place! In this article, we’ll explore the steps you can take to master this fundamental topic.

1. Understand the Basics

Before diving into complex data structures, it’s important to have a solid understanding of the basics. Familiarize yourself with concepts like arrays, linked lists, stacks, queues, and trees. These are the building blocks of more advanced data structures.


An array is a collection of elements of the same type stored at contiguous memory locations. It provides fast access to individual elements but has a fixed size.

Linked Lists:

A linked list consists of nodes where each node contains a value and a reference (or link) to the next node in the list. Linked lists provide dynamic memory allocation but have slower access times compared to arrays.


A stack is an abstract data type that follows the Last-In-First-Out (LIFO) principle. It supports two main operations: push (adding an element) and pop (removing the topmost element).


A queue is another abstract data type that follows the First-In-First-Out (FIFO) principle. It supports enqueue (adding an element at the rear) and dequeue (removing an element from the front) operations.


A tree is a hierarchical structure composed of nodes. Each node can have child nodes, forming a branching structure. Trees are widely used for representing hierarchical relationships.

2. Learn the Common Operations

Once you grasp the basics, it’s time to understand the common operations performed on data structures. These operations include insertion, deletion, searching, traversal, and sorting. Practice implementing these operations in different data structures to solidify your understanding.

3. Implement Data Structures from Scratch

To truly understand how data structures work, try implementing them from scratch. Start with simpler ones like arrays and linked lists before moving on to more complex structures like trees and graphs. Implementing data structures will help you gain a deeper insight into how they function and improve your coding skills.

4. Solve Problems Using Data Structures

The best way to reinforce your knowledge of data structures is by solving practice problems. Participate in coding competitions or solve algorithmic challenges on platforms like LeetCode or HackerRank. This hands-on experience will help you apply your knowledge and sharpen your problem-solving skills.

5. Study Advanced Data Structures

Once you have a solid foundation in basic data structures, you can explore more advanced ones such as heaps, hash tables, graphs, and tries. These structures are used in various applications and algorithms and can significantly enhance your programming capabilities.

6. Read Books and Online Resources

To supplement your learning journey, consider reading books dedicated to data structures and algorithms such as “Introduction to Algorithms” by Thomas H. Cormen et al., “Data Structures & Algorithms Made Easy” by Narasimha Karumanchi, or “Cracking the Coding Interview” by Gayle Laakmann McDowell. Additionally, many online platforms offer free tutorials and courses on data structures.

7. Practice, Practice, Practice

Lastly, practice regularly to reinforce your understanding of data structures. Implement them in real-world projects, work on coding exercises, and participate in coding challenges. The more you practice, the more comfortable you’ll become with using different data structures.

Learning data structures is a journey that requires dedication and consistent effort. By following these steps and continuously expanding your knowledge, you’ll become proficient in leveraging data structures to solve complex problems efficiently.

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