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Data Structures & Algorithms
00:05:00
Course Preview
Free DSA Online Course with Certification | Learn in 21 Days
83 Videos
Self-paced Course
18 Notes
Quick Notes
54 Labs
Hands-on Labs
Free Data Structures & Algorithms Course Overview
Ready to improve your coding skills? Our Free Data Structures & Algorithms Certification Course is useful for anyone wanting to learn the fundamentals of DSA. Whether you're a beginner or looking to improve your skills, we'll take you through fundamental concepts like arrays, linked lists, stacks, queues, and more complex topics like trees and graphs.
You'll also learn about important sorting, searching, and dynamic programming methods, as well as how to use Big-O Notation to optimize your code. By the end, you'll be confident in tackling problems efficiently and prepared for coding interviews or competitions.
In addition, you will receive a Certification to show your DSA skills & stand out in the tech industry. Ready to start? This course is aimed at advancing your coding skills!
Why Learn Data Structures & Algorithms?
- Improve Problem Solving: Create logical and efficient solutions to challenging problems.
- Expert Interviews: Essential for passing technical interviews at top organizations.
- Simplify Code: Develop applications that are faster, more efficient, and scalable.
- Boost Competitive Programming: Gain an advantage in coding competitions and hackathons.
- Advance Your Career: DSA expertise is a highly appreciated ability in technical professions.
- Build Foundations: Get ready for complex topics like AI, Machine Learning, and Big Data.
Top Career Options After Learning DSA
- Software Developer: Build efficient and scalable software.
- Data Analyst: Analyze and process large datasets.
- Backend Developer: Create robust server-side applications.
- AI/ML Engineer: Develop intelligent models and systems.
- Systems Architect: Design scalable and efficient systems.
- Database Engineer: Optimize and manage complex databases.
Tools for Learning Data Structures & Algorithms
- Code Editors: Visual Studio Code, and Sublime Text for writing and testing code.
- Online Platforms: Scholarhat, LeetCode, HackerRank, and Codeforces for practice.
- IDEs: Eclipse, PyCharm, IntelliJ IDEA for language-specific development.
- Visualization Tools: VisuAlgo for visualizing data structures and algorithms.
- Version Control: Git and GitHub for code management.
- Debugging Tools: Built-in debuggers or GDB for code testing.
Features
Course Features: Free Data Structures & Algorithms Certification Course
- Comprehensive Curriculum: This includes fundamental and advanced data structures and techniques, such as arrays, linked lists, stacks, queues, trees, graphs, sorting, searching, and dynamic programming.
- Big-O Analysis: Learn how to analyze algorithms' time and space complexity, allowing you to optimize your solutions for efficiency.
- Interactive Learning: Participate in video tutorials, & coding challenges meant to improve your learning and keep you motivated.
- Real-World Applications: Use your knowledge to address practical challenges that commonly arise in technical interviews & competitive programming.
- Free Certification: Receive a certificate upon successful completion to showcase your skills and enhance your resume.
- Self-paced Learning: Study quickly with lifetime access to course materials, allowing you to learn whenever and wherever you want.
Eligibility Criteria for Learning Data Structures & Algorithms
There are no strict eligibility requirements for the Free Data Structures & Algorithms Certification Course. Basic programming knowledge in languages like Python, Java, or C++ is helpful, but not mandatory. The course is suitable for all levels—whether you're a beginner or have some coding experience. All you need is a willingness to learn and a passion for improving your problem-solving skills in algorithms and data structures.
Included in this Course
- Video Course 83 Videos
- Quick Notes 18 Notes
- Labs 54 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
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
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 Linear Search
Linear search1 Preview 01m 42s Linear Search Implementation 08m 04s Linear Search Questions 25m 56s Binary Search
Binary Search 01m 34s Binary Search implementation 12m 19s First and Last Occurence 23m 33s Arrays Searching
Search in Rotated Sorted array 19m 31s Search in rotated Sorted Array 10m 39s Find Minimum in Rotated Sorted Array 04m 59s Bubble, Selection and Insertion Sort
Bubble Sort 01m 28s Bubble Sort Implementation 07m 33s Selection Sort 02m 05s Selection Sort Implementation 07m 15s Insertion Sort 01m 06s Insertion Sort implementation 10m 18s Merge, Quick and Counting Sort
Merge Sort 09m 58s Merge Sort Implementation 20m 22s Quick Sort 08m 51s Quick Sort Implementation 08m 51s Counting Sort 02m 46s Counting Sort Implementation 17m 57s Bucket, Find Kth Element and Find Pages
Bucket Sot 01m 03s Bucket Sort Implementation 15m 47s FindKthElement 19m 26s Kth largest element 22m 27s Find Pages 09m 33s Find Pages PART 2 20m 01s Theif problem 13m 19s Minimum swaps 15m 06s Stack
Stack 03m 38s Stack Implementation by library 14m 58s Stack Implementation using Array 23m 16s Stack Implementation using LinkedList 22m 09s Valid Parentheses 16m 36s Simplify Path 1 12m 27s Simplify path 2 09m 27s Evaluate Reverse Polish Notation 25m 12s Trapping Rainwater 24m 04s Longest valid Parentheses 24m 13s Basic Calculator 26m 05s Queue
Introduction to Queue Preview 04m 49s Queue Implementation 13m 16s Queue Implementation user defined function 28m 12s Implement Stack using Queues 25m 32s Implement Queue using Stack 21m 23s First Unique Character in a String 26m 01s First Unique Character in a String 26m 01s Reveal Cards in Increasing Order 19m 32s Find the Winner of the Circular Game 17m 23s Quick Notes Notes (18)
Big O in Data Structure
00:06:00
Array in Data Structures
00:07:00
String in Data Structure
00:02:00
Linear Search in Data Structure
00:02:00
Binary Search in Data Structure
00:02:00
Bubble Sort in Data Structure
00:03:00
Selection Sort in Data Structure
00:02:00
Insertion Sort in Data Structure
00:03:00
Merge Sort in Data Structure
00:03:00
Quick Sort in Data Structure
00:02:00
Counting Sort in Data Structure
00:03:00
Bucket Sort in Data Structure
00:03:00
Heap Sort in Data Structure
00:04:00
Shell Sort in Data Structure
00:03:00
Radix Sort in Data Structure
00:02:00
Stack in Data Structure
00:04:00
Queue in Data Structure
00:04:00
Hands-On Labs Labs(54)
Java: Count the frequency of an element in an Array
00:20:00
Java: Ceiling in a Sorted Array
00:25:00
Java: Two Sum
00:30:00
Java: Reverse a Stack using Recursion
00:25:00
Java: Find next right node of a given key
00:30:00
Java: Big-O-Binary Search Algorithm
00:15:00
Java: Traversing directory in Java using BFS
00:20:00
Java: Delete consecutive same words in a sequence
00:25:00
Java: Merge Sorted Arrays
00:25:00
Java: Count 1’s in a Sorted Binary Array
00:20:00
Java: Find all triplets with zero sum
00:20:00
Java: Leaders in an array
00:20:00
Java: Find a Fixed Point (Value equal to Index) in given Array
00:25:00
Java: Search Insert Position
00:25:00
Java: Sort a Stack using another stack
00:30:00
Java: Minimum time required to rot all oranges
00:40:00
Java: Next Greater Element
00:30:00
Java: First Bad Version
00:30:00
Java: Search an Element in a Sorted and Rotated Array
00:30:00
Java: Meeting Rooms
00:25:00
Java: Merge Two Sorted Arrays
00:20:00
Java: Two Elements whose Sum is Closest to Zero
00:30:00
Java: Find Peak Element
00:30:00
Java: Trapping rain water
00:30:00
Java: Largest rectangle in histogram
00:25:00
Java: Search in Rotated Sorted Array
00:25:00
Java: Search in an Almost Sorted Array
00:25:00
Java: Minimum Number of Jumps to Reach End in Array
00:25:00
Java: Move all Zeros to the beginning of an array
00:25:00
Java: Median of Two Sorted Arrays of Different Sizes
00:30:00
Java: 3 Sum
00:25:00
Java: Search a 2D Matrix
00:20:00
Java: A Pair with a Given Sum in the Rotated Sorted Array
00:25:00
Java: Remove Duplicates from an Array
00:20:00
Java: Rotate a Matrix by 90 degrees
00:25:00
Java: Sort Elements by Frequency
00:30:00
Java: Find Minimum in Rotated Sorted Array
00:25:00
Java: Find Minimum in Rotated Sorted Array II
00:35:00
Java: Sort a Linked List of 0s, 1s and 2s
00:35:00
Java: Rotate an Array to the left
00:20:00
Java: Camel Case of a given Sentence
00:20:00
Java: Find Missing Elements of a Range
00:25:00
Java: Sort a Nearly Sorted (or K sorted) Array
00:20:00
Java: Count ways to increase LCS length of two Strings by one
00:25:00
Java: Minimum rotations required to get the same string
00:15:00
Java: Chocolate Distribution Problem
00:30:00
Java: Minimum Swaps required to convert binary tree to binary search tree
00:30:00
Java: Multiply Large Numbers represented as Strings
00:25:00
Java: Find Itinerary from a given list of tickets
00:25:00
Java: Count Distinct Occurrences as a Subsequence
00:30:00
Java: Sort a Matrix in all way Increasing Order
00:20:00
Java: Find the length of the largest subarray with 0 Sum
00:25:00
Java: Longest Increasing Consecutive Subsequence
00:25:00
Java: Find Whether an Array is a Subset of Another Array
00:20:00
Certification FAQs
- Are there any hidden charges for the certification?
No, the course and certification are completely free. There are no hidden charges. - How can I get the free certification?
To get the free certification, you need to enroll in the course, complete all the required modules, and pass the final assessment or quiz - Can I earn multiple free certifications?
Yes, you can enroll in multiple courses and earn free certifications for each course you successfully complete. - Will the certification mention that the course was free?
No, the certification will only highlight your achievement and not mention whether the course was free or paid.
Our Students Reviews
First of all, I would like to thank ScholarHat for everything. Here is my experience in ScholarHat - "When I came to know about ScholarHat, honestly I didn't have much idea about Data Structures and was looking for a job. So I thought it would be a better option to join here and get some knowledge about real-time projects and a few interviews, which would be a big thing for me. Then I was assured by the staff from the ScholarHat and joined. From day one I felt a different energetic atmosphere in the classroom. And about the staff all are well educated, trained and also very friendly to everyone, as a student which helped me a lot, they never shown any irritation even though I was asking same things repeatedly. The main thing is that all the syllabus covered up in a proper manner, so that a student can understand each things about the training. And thanks for providing some important seminars which helped me a lot to crack an interview. Thank you ScholarHat for making my career". I have never taken it so far in my life time, and day by day it’s getting better for me. I have got confidence in facing Xamarin interviews and learned lot of new real-time scenario. Keep rocking ScholarHat, your team is doing great job.. Way to go..
Rajkishore Yadav
(Sr. Software Developer)
It's a great experience to be part of ScholarHat. this Training really helps me for improving my enhancements skills professionally also. If I talk about interview purpose it's really a great great opportunity because in training class this was my personal experience that Sir won't leave a single scenario that Interviewer going to ask you. He covers all the concepts theoretical as more focused on practical. If you really want to beat Interview and get good job and hike join ScholarHat.
Deepali Panwar
(Software Engineer )
First of all thank you Shailendra sir for your great knowledge, amazing energy, good style of teaching and hard effort you put into MVC class. This was the best class i joined, it helped me to enhance my skills. I think you are excellent at motivating people to enjoy the class and do their best. It's just incredible to see how different your approach is from others. It was great learning experience with you. You and this class will be remembered for long time. Thanks ScholarHat...
Vipul Kaushik
(Associate Technical Lead )
Scholarhat training is really professional, and Services provided by them on installation & technical issues are mind blowing. This training was really helpful for me in understanding the asp.net core. In one word, I have received "Outstanding support" from Scholarhat and its staff. trainers is very supportive. Scholarhat is very well organized and structured organization. In Scholarhat, you will find each bit of information scratch to In-depth. Training materials, Interview blogs, Assignment, Quiz and etc. are organized in proper way. Finally, I will recommend Scholarhat to anybody, looking for instructor led live session to keep oneself up to date with the latest trends & technology.
Hardeep Singh
(Team Lead)
I am so glad after join to ScholarHat, It was a really nice training. Helped me a lot to enhance my skills. Our professor is not only a good tutor but also a true guide for student bright future. ScholarHat to gain true knowledge with great guidance and helped me so much specially in cracking interview.
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(Software Developer)
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 hello@scholarhat.com
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 hello@scholarhat.com
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