DSA - Step by Step Learning

Self-Paced Course
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interested count90k+ interested Geeks

DSA - Step by Step Learning Preparation is a day-wise course under the Skill Up Program designed to improve problem-solving and coding skills through structured daily learning. It includes theory articles, coding practice, quizzes, and contests for consistent revision and hands-on experience. The course covers key DSA topics like arrays, linked lists, trees, graphs, recursion, and dynamic programming, making it ideal for interviews, placements, and competitive programming.

course duration21 Weeks
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Serious & committed learners can still earn up to 90% of their course fee back by taking the Three 90 Challenge.

Serious & committed learners can still earn up to 90% of their course fee back by taking the Three 9

Course Overview

DSA - Step by Step Learning is a structured, day-wise Data Structures and Algorithms (DSA) course launched under the Skill Up Program, designed to help learners build strong problem-solving and coding skills through consistent daily learning and practice. The course follows a well-planned roadmap where each day focuses on important DSA concepts such as arrays, strings, recursion, searching, sorting, linked lists, stacks, queues, trees, graphs, greedy algorithms, and dynamic programming.

Each topic begins with detailed and beginner-friendly concept articles that explain fundamentals, approaches, and optimization techniques in depth. These are followed by carefully selected daily practice problems and quizzes to reinforce understanding and improve coding consistency. Regular coding contests and assessments help learners apply concepts under time constraints, similar to real coding interviews and competitive programming environments.

The course offers a complete learning experience by combining theory, implementation, problem-solving strategies, and complexity analysis. It also includes Problem of the Day challenges to strengthen daily coding habits, improve logical thinking, and increase problem-solving speed.

Whether you are preparing for coding interviews, campus placements, online assessments, or competitive programming, DSA - Step by Step Learning provides a guided and structured path with the right balance of learning, practice, and evaluation to help you become confident in Data Structures and Algorithms.

DSA Skill Up Highlights

  • Learn Data Structures and Algorithms from scratch in C++, Java, Python, C#, and JavaScript.
  • Structured day-wise roadmap covering Arrays, Strings, Recursion, Sorting, Searching, Trees, Graphs, Dynamic Programming, and more.
  • In-depth concept articles designed for clarity, understanding, and strong fundamentals.
  • Daily practice problems and quizzes to build consistency and strengthen problem-solving skills.
  • Regular coding contests and assessments for hands-on experience and interview-style practice.
  • Coverage of both foundational and advanced topics including Greedy, Backtracking, Graphs, and DP.
  • Detailed explanation of time and space complexities with optimized approaches.
  • Problem of the Day challenges to improve coding speed and maintain daily practice.
  • Ideal for interview preparation, placement drives, online coding tests, and competitive programming.
  • Structured and curated content designed by experts from GeeksforGeeks.
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Course Content

01Week 1: Mathematics & Combinatronics
  • Number systems, divisibility rules, prime numbers, and factorization
  • HCF, LCM, and modular arithmetic with applications in coding
  • Fast exponentiation and modular inverse techniques
  • Practice problems, quiz, and a contest focused on maths-based logic
02Week 2: Arrays - 1D & 2D
  • Solve basic 1D array problems like sum, max, and reverse
  • Learn key algorithms like Kadane, Moore voting
  • Work on classic 2D array problems like transpose, spiral print, and matrix rotation
  • Daily problems, quiz, and a weekly contest on array-based logic
03Week 3: Hashing & Prefix Sums
  • Understand the basics of hashing and frequency counting
  • Apply hashing in element lookup, counting, and index mapping
  • Learn the prefix sum technique for range-based subarray analysis
  • Explore applications of prefix arrays in optimization and pattern detection
  • Daily problems, topic quiz, and a contest on hashing and prefix-based logic
04Week 4: Strings
  • Understand string fundamentals including character access and manipulation
  • Learn advanced string matching algorithms like Z-Algorithm, KMP, and Rabin-Karp
  • Explore palindromic techniques with Manachers algorithm and center expansion
  • Daily practice, quiz, and a contest focused on string algorithms and concepts
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