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Data Structures & Algorithms Free Course | Free DSA Course With Certificate

34 Videos

Self-paced Course

19 Labs

Hands-on Labs

Data Structure & Algorithms Free Course Overview

Welcome to the Data Structure & Algorithms for Beginners course! This comprehensive and free course is your gateway to the exciting world of Data Structure & Algorithms. Whether you're an absolute beginner with no prior coding experience or you're looking to expand your programming knowledge, this course is designed to get you started on the right track.

Course Features:

  1. No Cost: This course is absolutely free, making it accessible to anyone interested in learning Data Structure & Algorithms.

  2. Self-Paced Learning: Learn at your own pace. There are no deadlines or schedules to worry about, allowing you to balance your learning with your other commitments.

  3. Beginner-Friendly: Designed with beginners in mind, the course starts from the basics and gradually progresses to more advanced topics.

  4. Hands-On Experience: Gain practical experience through coding exercises and projects that reinforce what you've learned.

  5. Video Lectures: Engage with video lectures that break down complex concepts into easy-to-understand explanations.

  6. Skill Tests: Test your knowledge and track your progress through skill tests for each section.

  7. Access to Resources: Find additional resources, reference materials, and links to useful tools to support your learning journey.

Included in this Course

  •   Video Course 34 Videos
  •   Labs 19 labs

DSA and Big O

Data Structure Introduction Preview 04m 32s
Non-Linear Data Structure 09m 25s
Asymptotic analysis 14m 31s
Asymptotic Explanation 20m 23s


Array Introduction 09m 58s
Array Traversal 10m 46s
Array insert data 06m 21s
Array Bound Checking 16m 52s
Array Insertion 12m 35s
Deletion in Array 07m 38s
2D array 13m 47s
Array List Integer 20m 47s

Array Questions

Array List String 18m 17s
Storing Heterogeneous Element in array 13m 20s
Array Question1 41m 40s
Array Question2 18m 48s
Sum Leet code 19m 24s
buy and sell Stock leetcode 10m 34s
Product of Array Except Self 16m 56s
Container With Most Water 19m 45s
Spiral Matrix 30m 10s
Sudoku valid 29m 36s


String Preview 01m 00s
String literals 09m 15s
Immutable String 05m 33s
String Methods 21m 33s
StringBuilder vs String Buffer 04m 42s
String Builder and Buffer example 11m 29s
Valid Palindrome 08m 05s
Valid Anagram 15m 23s
Longest Substring Without Repeating Characters 17m 22s
Find All Anagrams in a String 31m 07s
Largest Number 19m 26s
Largest Number 1 09m 06s
Hands-On Labs Labs(19)

Java: Count the frequency of an element in an Array


Java: Big-O-Binary Search Algorithm


Java: Find all triplets with zero sum


Java: Leaders in an array


Java: Meeting Rooms


Java: Merge Two Sorted Arrays


Java: Minimum Number of Jumps to Reach End in Array


Java: Move all Zeros to the beginning of an array


Java: Remove Duplicates from an Array


Java: Rotate a Matrix by 90 degrees


Java: Rotate an Array to the left


Java: Camel Case of a given Sentence


Java: Count ways to increase LCS length of two Strings by one


Java: Minimum rotations required to get the same string


Java: Multiply Large Numbers represented as Strings


Java: Find Itinerary from a given list of tickets


Java: Find the length of the largest subarray with 0 Sum


Java: Longest Increasing Consecutive Subsequence


Java: Find Whether an Array is a Subset of Another Array


Our Students Reviews

Frequently Asked Questions

Q1. Can I Attend a Demo Session before Enrolment?

Yes, you can Attend a Demo Session before Enrolment in angular certification course. It gives you the opportunity to assess whether the training program aligns with your learning objectives. So, don't hesitate! Take advantage of this opportunity and attend a demo session before making your decision.

Q2. Can I request for a support session if I need to better understand the topics?

Yes, of course you can request for a support session if you need to better understand the topics. For that, you need to be in touch with the counsellor. Contact on +91- 999 9123 502 or you can mail us at

Q3. Do you offer certificate of completion?

Yes. The certificate is valid and can be used for interviews. Additionally, the student can register for the .Net Certification exam after completion of this course.

Q4. Who are your mentors?

All our mentors are highly qualified and experience professionals. All have at least 8-10 yrs of development experience in various technologies and are trained by Dot Net Tricks to deliver interactive training to the participants.

Q5. What If I miss my online training class?

All online training classes are recorded. You will get the recorded sessions so that you can watch the online classes when you want. Also, you can join other class to do your missing classes.

Q6. Can I share my course with someone else?

In short, no. Check our licensing that you agree to by using Dot Net Tricks LMS. We track this stuff, any abuse of copyright is taken seriously. Thanks for your understanding on this one.

Q7. Do you provide any course material or live session videos?

Yes we do. You will get access to the entire content including class videos, mockups, and assignments through LMS.

Q8. Do you provide training on latest technology version?

Yes we do. As the technology upgrades we do update our content and provide your training on latest version of that technology.

Q9. Do you prepare me for the job interview?

Yes, we do. We will discuss all possible technical interview questions and answers during the training program so that you can prepare yourself for interview.

Q10. Will I get placement assistance after receiving my course completion certificate?

Yes, you’ll get placement assistance after receiving your course completion certificate. The placement assistance provided by the US will guide you through the job search process, help you polish your resume, and connect you with potential employers. For that, you need to be in touch with the counsellor. Contact on +91- 999 9123 502 or you can mail us at

This course includes
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