Data Structures & Algorithms
Develop strong problem-solving and programming fundamentals through data structures, algorithms, complexity analysis, and coding problems.
Course overview
Data Structures & Algorithms builds the problem-solving foundation that every strong programmer needs.
You will learn how to analyse the time and space complexity of your code, implement the core data structures from scratch, and apply classic algorithmic techniques — recursion, sorting, searching, greedy methods and dynamic programming.
Each topic is followed by topic-wise coding problems of increasing difficulty, so you learn to recognise patterns and approach new problems with confidence.
Course at a glance
What you will learn
- Analyse time and space complexity using Big-O notation
- Solve problems with arrays, strings and hashing
- Think recursively and apply backtracking
- Implement and compare searching and sorting algorithms
- Build linked lists, stacks and queues from scratch
- Work with trees, binary search trees and heaps
- Represent graphs and apply BFS, DFS and shortest-path algorithms
- Apply greedy techniques and dynamic programming
- Recognise common problem-solving patterns
- Write efficient, well-tested solutions
Course curriculum
Module 1: Complexity Analysis4 lessons
Module 2: Arrays & Strings5 lessons
Module 3: Recursion & Backtracking4 lessons
Module 4: Searching & Sorting5 lessons
Module 5: Linked Lists4 lessons
Module 6: Stacks & Queues4 lessons
Module 7: Hashing4 lessons
Module 8: Trees & Binary Search Trees4 lessons
Module 9: Heaps & Priority Queues4 lessons
Module 10: Graphs6 lessons
Module 11: Greedy Algorithms & Dynamic Programming5 lessons
Module 12: Problem-Solving Strategy4 lessons
Practical projects
Implement linked lists, stacks, queues, heaps and a hash map from scratch with tests.
Design and build an LRU cache using a hash map and a doubly linked list.
Apply BFS and Dijkstra's algorithm to find routes on a grid or map.
Graded coding problems for every topic, from easy to challenging.
Tools & software
Who is this course for?
- Students preparing for technical interviews and coding assessments
- Graduates strengthening their programming fundamentals
- Working developers who want to write more efficient code
- Learners who have completed a programming course and want to go deeper
Career applications
The skills from this course can be applied to roles and projects such as:
- Preparation for technical interviews and coding tests
- Software Developer and Software Engineer roles
- Writing efficient code for large data and performance-critical systems
- Competitive programming
Requirements
- Working knowledge of one programming language (Java or Python recommended)
- Comfort with loops, functions and basic data types
- Our Python Programming or Java Full Stack course covers these prerequisites
Certificate
Certificate of Completion
On successfully completing the course requirements — lessons, practical projects/assignments and assessments — you receive a Vector Tech Academy Certificate of Completion. Every certificate carries a unique certificate ID and a QR code that anyone (a client, an employer or an institute) can verify on our website. The certificate recognises that you completed this course and its projects; it is not a university degree or a government-recognised qualification.
Frequently asked questions
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