Best Ways To Learn Data Structures And Algorithms

Mansi Sharma
6 min readOct 26, 2023

Are you wondering why anyone would study all the complex material mentioned above if it has no practical application? Why do companies ask questions about data structures and algorithms if they are not relevant to their daily work?

Did you know that behind the scenes everything revolves around SQL commands and that Linux is algorithms and data structures? You may not know it, but this is how the software works.

Let’s take a look at what DSA basically is and why it’s so important.

What are data structures and algorithms?

Data structures and algorithms help to understand the nature of the problem at a deeper level and, therefore , allow a better understanding of the world.

Data structures and algorithms are the basis of all software and every project we develop. The DSA is used in developer interviews to measure students’ reasoning and problem-solving skills. The number of competitive programming websites and courses available on DSA has increased significantly in recent years.

The algorithms and data structures provide the programmer with several options for data processing. actually. A programmer may not be able to create efficient and reliable code for his software if he is not familiar with data structures and algorithms. It is essential for professional success and is an important part of computer science.

The DSA is a nightmare and difficult for many students to complete. The roots of how many things work in computers are found in DSA. The importance of DSA is not only in terms of “hot hiring capabilities”, but also as an advantage that allows for a better understanding of the most complex things in the IT world.

Data structures :

  • Array: Stores data of the same type in contiguous locations.
  • Linked List: Consists of a chain of nodes containing data linked together via links.
  • Queue: it is a data structure that follows the first-in, first-out method
  • Stack: A linear data structure that follows the last-in, first-out method.
  • Trees: Hierarchical data structure defined as a collection of nodes
  • Diagrams: non-linear data structure composed of nodes and edges

Algorithms:

  • Search algorithms such as linear search, binary search and Fibonacci search.
  • Sorting techniques such as merge sort, quick sort and heap sort.
  • Graph and graph tree algorithms , such as Dijkstra’s algorithm, DFS and BFS

Why learn DSA?

Write optimized and scalable code: Once you know the different data structures and algorithms, you can determine which data structure and algorithm to choose under different conditions.

Efficient use of time and memory: Knowing data structures and algorithms allows you to write code that runs faster and uses less memory.

Better job opportunities: Questions about data structures and algorithms are often asked during interviews in various organizations like Google, Facebook, etc.

The main goal here is not to overload anything; Instead, understand the ideas and apply them to problems to improve your knowledge of ASD. “The more you practice, the more you learn.”

TIPS TO ACCELERATE YOUR DSA JOURNEY

Understand the basic concepts of the language you speak are scheduled. Learn beyond theory by implementing all concepts in different ways.

Understand the depth of the complexity of time and space Code and test.

Focus on strengthening logic rather than studying existing code. Better logic will help you solve more invisible questions.

Improve your problem-solving skills, not just programming-specific ones. It changes the way you think and can help you get more exposure to bigger problems.

Practice coding on sites like Leetcode, Code Studio, etc. Be careful when practicing solving tasks at different difficulty levels. Don’t limit yourself to a specific level and solve everything only at that level. This means you are less likely to face more difficult questions.

Stay calm and believe in yourself. No question is unsolvable.

To improve your understanding of data structures and algorithms, first evaluate what you already know and the areas where you lack knowledge and understanding. data. .

Here we have included a curated list of resources to learn DSA from zero level to advanced level for internship and interview preparation.

1. VIDEO LESSONS or YOUTUBE

Many videos are available to DSA on each topic. To understand the fundamentals and implementation of each data structure, it would be great to watch the lesson series and write some code examples. You can do this by researching each topic and observing different teachers, or you can follow a playlist or a specific teacher. Some of the best YouTube channels and playlists for learning about ASD are:

2. ONLINE COURSES

During the offer period, many paid courses are available with free registration. You can also sign up for free certified or non-certified courses to hone your skills with expert instructors. It should be noted that course certificates are not important as they are not considered sufficient unless you have an achievement demonstrating this skill. The best way to demonstrate this skill is to rank well and become first in programming competitions.

3. BOOKS

Books are one of the best ways to learn concepts and put them into practice. Humans have had this primary source of learning since ancient times and it continues to influence them. Several books specifically explain programming concepts from beginner to advanced levels. I have listed some books that are ideal for beginners and some for advanced students.

4. Miscellaneous

You can participate in hackathons for beginners and learn from various blogging sites. “Knowledge is only valuable if it is put into practice.” After explaining all the basic concepts and their implementation, you need to practice questions to acquire problem solving skills, which form the basis of all technical interviews. Many sites offer banks of practice questions.

Here are some tips for learning DSA effectively:

Stop memorizing everything. Instead, start with the basics and learn two things:

• Visualize the structure of the data. You intuitively understand what the data structure looks like and what you think about usage information and the abstract and physical structure of your computer’s memory. This is the most important thing you can do and is useful from the simplest queues and stacks to the most complicated self-balancing tree. Draw, visualize in your head everything you need to do: understand the structure intuitively.

• Learn when and how to use different data structures and their algorithms in your code itself. As a student, this is more difficult because the problem tasks to be solved simply do not provide this knowledge. In order. Remember that you won’t master data structures until you work on a real problem and discover that a hash is a solution to your performance problems. But even as a student, your goal shouldn’t be learning the nitty-gritty details, but rather the practicalities: When do you want hash? When do you want a tree? When is a min-heap the right solution?

• To get started, you should prepare to create your roadmap and select only the features that work for you and are achievable . . . Some days you may not be able to cover these concepts, but practice them daily to reinforce your learning. Solving at least 10 questions (3 difficult, 5 medium and 2 easy) regularly will help you clarify your concepts and improve your logical thinking. Don’t be discouraged if you can’t solve problems, learn from your mistakes. Finally, it is important to stay motivated throughout the learning phase to achieve your goal. Don’t let failures stop you.

I hope this helps you on your journey.

Final Thoughts

In general, software development requires daily technological learning. By using these technologies in one of your applications, you will be able to learn most of them. Algorithms, on the other hand, don’t work that way.

Good luck on your programming journey! It certainly won’t be easy, but if you follow these steps, you’ll be closer than many to mastering data structure and algorithms.

Ultimately, if you Start getting nervous because there’s a lot to learn, calm down. Learning CP is a lot of fun and I’m sure you will enjoy it.

Please suggest any improvements or other useful features that you think are worth adding.

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Mansi Sharma

Hi, I'm Mansi Sharma, B2B SaaS Front-End Developer with expertise in UX Prompt Design and DesignOps. https://lushaseex.com/4/6301786