Data Structures & Algorithms
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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!
Course Features: Free Data Structures & Algorithms Certification Course
DSA and Big O
Array
Array Questions
String
Linear Search
Binary Search
Arrays Searching
Bubble, Selection and Insertion Sort
Merge, Quick and Counting Sort
Bucket, Find Kth Element and Find Pages
Stack
Queue
Data Structures & Algorithms
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Big O in Data Structure
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Array in Data Structures
00:07:00
String in Data Structure
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Linear Search in Data Structure
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Binary Search in Data Structure
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Bubble Sort in Data Structure
00:03:00
Selection Sort in Data Structure
00:02:00
Insertion Sort in Data Structure
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Merge Sort in Data Structure
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Quick Sort in Data Structure
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Counting Sort in Data Structure
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Bucket Sort in Data Structure
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Heap Sort in Data Structure
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Shell Sort in Data Structure
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Radix Sort in Data Structure
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Stack in Data Structure
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Queue in Data Structure
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Java: Count the frequency of an element in an Array
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Java: Ceiling in a Sorted Array
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Java: Two Sum
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Java: Reverse a Stack using Recursion
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Java: Find next right node of a given key
00:30:00
Java: Big-O-Binary Search Algorithm
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Java: Traversing directory in Java using BFS
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Java: Delete consecutive same words in a sequence
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Java: Merge Sorted Arrays
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Java: Count 1’s in a Sorted Binary Array
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Java: Find all triplets with zero sum
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Java: Leaders in an array
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Java: Find a Fixed Point (Value equal to Index) in given Array
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Java: Search Insert Position
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Java: Sort a Stack using another stack
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Java: Minimum time required to rot all oranges
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Java: Next Greater Element
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Java: First Bad Version
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Java: Search an Element in a Sorted and Rotated Array
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Java: Meeting Rooms
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Java: Merge Two Sorted Arrays
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Java: Two Elements whose Sum is Closest to Zero
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Java: Find Peak Element
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Java: Trapping rain water
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Java: Largest rectangle in histogram
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Java: Search in Rotated Sorted Array
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Java: Search in an Almost Sorted Array
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Java: Minimum Number of Jumps to Reach End in Array
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Java: Move all Zeros to the beginning of an array
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Java: Median of Two Sorted Arrays of Different Sizes
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Java: 3 Sum
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Java: Search a 2D Matrix
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Java: A Pair with a Given Sum in the Rotated Sorted Array
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Java: Remove Duplicates from an Array
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Java: Rotate a Matrix by 90 degrees
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Java: Sort Elements by Frequency
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Java: Find Minimum in Rotated Sorted Array
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Java: Find Minimum in Rotated Sorted Array II
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Java: Sort a Linked List of 0s, 1s and 2s
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Java: Rotate an Array to the left
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Java: Camel Case of a given Sentence
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Java: Find Missing Elements of a Range
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Java: Sort a Nearly Sorted (or K sorted) Array
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Java: Count ways to increase LCS length of two Strings by one
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Java: Minimum rotations required to get the same string
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Java: Chocolate Distribution Problem
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Java: Minimum Swaps required to convert binary tree to binary search tree
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Java: Multiply Large Numbers represented as Strings
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Java: Find Itinerary from a given list of tickets
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Java: Count Distinct Occurrences as a Subsequence
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Java: Sort a Matrix in all way Increasing Order
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Java: Find the length of the largest subarray with 0 Sum
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Java: Longest Increasing Consecutive Subsequence
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Java: Find Whether an Array is a Subset of Another Array
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Our comprehensive course covers fundamental and advanced data structures and algorithms (DSA), including arrays, linked lists, stacks, queues, trees, graphs, and dynamic programming. Designed for beginners, it provides a solid foundation in DSA principles.
Absolutely! Upon completing all modules and passing the final assessment, you'll receive a certificate of completion from ScholarHat to showcase your skills.
The course is structured to be completed in 21 days, with approximately 1–2 hours of study per day. However, it's self-paced, allowing you to learn at your own convenience.
The course primarily uses C and C++ for demonstrating DSA concepts. However, the principles taught are applicable across various programming languages.
Mastering DSA is crucial for technical interviews and problem-solving in software development roles. This course equips you with the necessary skills to excel in coding interviews and enhance your programming proficiency.
Yes! All our listed courses are completely free. You can access all learning materials, videos, and resources without paying a single rupee.
Anyone! Whether you're a beginner with no coding experience or someone looking to upskill, our courses are designed for all levels.
Absolutely. Every course includes step-by-step guidance, real-life examples, and practice projects to help you learn effectively from scratch.
Yes, all our courses are fully self-paced. You can learn anytime, anywhere, and from any device that suits you.
Our focus is on job-ready skills. The courses are built to teach industry-relevant knowledge that employers value, including hands-on coding and real-world projects.
Yes! Along with courses, we offer career resources like interview prep eBooks, resume tips, and mock interview support.
While free courses provide strong fundamentals, combining them with real-world projects, internships, and advanced practice can significantly boost your chances of landing a job.