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Premium Course Syllabus

DSA Quick Revision

Condensed Placement Preparation Syllabus

Rapid Revision · Pattern Drills · Complexity Cheatsheet · Pre-Exam Ready

7 Modules
31 Topics
7 Drills
DSA

Ideal For

Students 1–2 weeks before campus placement coding tests
Quick revision before HackerRank / HackerEarth / LeetCode coding rounds
Anyone who studied DSA but needs a structured last-mile refresher
Resume-building revision — brush up before describing projects in interviews

Module-Wise Curriculum

A concise, placement-focused syllabus — covers every key concept without overloading.

1

Module 1

Complexity & Foundations Cheatsheet

  • Big-O Cheatsheet — O(1), O(log n), O(n), O(n log n), O(n²), O(2ⁿ) with examples
  • When is O(n log n) better than O(n²) — threshold calculation for n=10³, 10⁴, 10⁶
  • Space Complexity — auxiliary vs total, recursion stack space, in-place algorithms
  • Master Theorem Quick Reference — 3 cases, when each applies, solved examples
Drill — Complexity Quick-Fire (10 questions, 5 min)
2

Module 2

Arrays, Strings & Two Pointers Rapid Review

  • Must-Know Array Patterns — prefix sum, sliding window, two-pointer, in-place reversal
  • Binary Search Variants — lower bound, upper bound, search on answer, rotated array
  • String Patterns — KMP pattern matching idea, sliding window for substrings
  • Key Problems Recap — Maximum Subarray, Trapping Rain Water, 3Sum, Longest Substring
Drill — 10 Arrays/Strings Problems (15 min)
3

Module 3

Linked Lists, Stacks & Queues Rapid Review

  • Linked List Must-Knows — reverse, cycle detection (Floyd's), merge sorted, find middle
  • Stack Patterns — monotonic stack, next greater/smaller element, valid parentheses
  • Queue Patterns — BFS queue, sliding window maximum with deque
  • Key Problems Recap — LRU Cache, Min Stack, Largest Rectangle in Histogram
Drill — Linked List + Stack Problems (15 min)
4

Module 4

Trees, Heaps & Graphs Rapid Review

  • Tree Traversal Cheatsheet — preorder/inorder/postorder iteratively and recursively
  • BST Operations Recap — insert, delete, validate, find K-th smallest, LCA
  • Heap Quick Reference — min/max heap operations, top-K pattern, heap sort
  • Graph Patterns — BFS/DFS templates, cycle detection, topological sort, Dijkstra
  • Key Problems Recap — Level Order Traversal, Diameter, Number of Islands, Course Schedule
Drill — Trees + Graphs Problems (20 min)
5

Module 5

Backtracking & Divide-Conquer Rapid Review

  • Backtracking Template — choose → explore → unchoose, state space tree visualisation
  • Subsets, Permutations, Combinations — three core templates to memorise
  • Divide & Conquer Recap — merge sort, quick sort, binary search recursion tree
  • Key Problems Recap — N-Queens, Combination Sum, Word Search, Generate Parentheses
Drill — Recursion Problems (15 min)
6

Module 6

Dynamic Programming Rapid Review

  • DP Problem Identification — when to apply DP, recognising overlapping subproblems
  • 1D DP Quick Patterns — coin change, climbing stairs, house robber, jump game
  • 2D DP Quick Patterns — LCS, edit distance, unique paths, 0/1 knapsack
  • DP Optimisation — rolling array space optimisation, state compression overview
  • Key Problems Recap — Longest Increasing Subsequence, Word Break, Partition Equal Subset
Drill — DP Problems (20 min)
7

Module 7

Final Exam Strategy & Speed Drills

  • Problem-Solving in 30 Minutes — how to allocate time for easy/medium/hard
  • Pattern Recognition Quick Reference — 15 patterns and their trigger conditions
  • Common Mistakes Under Pressure — off-by-one, missing edge cases, overflow
  • What to Do When Stuck — brute force first, look for structure, reduce the problem
  • Last 48 Hours Checklist — what to review, what to skip, mental preparation
Drill — Full Timed Set: 20 Problems in 40 min

Pattern-First

Learn recurring patterns, not one-off tricks — the fastest path to solving new problems.

Placement-Ready

Every module ends with an assessment or drill mapped to the way rounds are actually run.

AI-Assisted

Unlimited AI Tutor, Mock Interviews and Resume Review are included with your subscription.

Unlock DSA Quick Revision and 13 more courses

One subscription. Every structured course, every AI tool, every private update — for a full year.

DSA Quick Revision & Last-Minute Cheatsheet

A compressed revision path for the last one to two weeks before a coding round. Every module is a cheatsheet plus a timed drill: complexity thresholds, the array and string patterns worth memorising, linked list and stack must-knows, tree and graph templates, the three backtracking skeletons, and the 1D/2D dynamic programming patterns that keep reappearing.

The drills are deliberately timed because the failure mode before a test is not knowledge, it is speed and nerves. The final module is an exam-day plan — how to split 90 minutes, what to do when you are stuck, the mistakes that cost marks under pressure, and a 48-hour checklist of what to review and what to skip.

What you'll learn in DSA Quick Revision

  • Complexity & Foundations Cheatsheet
  • Arrays, Strings & Two Pointers Rapid Review
  • Linked Lists, Stacks & Queues Rapid Review
  • Trees, Heaps & Graphs Rapid Review
  • Backtracking & Divide-Conquer Rapid Review
  • Dynamic Programming Rapid Review
  • Final Exam Strategy & Speed Drills

Why DSA Quick Revision matters for placements

Revision decides how much of what you studied you can retrieve in a timed test. A structured last-mile pass through patterns and complexity numbers usually adds one or two solved problems, which is often the difference between clearing a shortlist and missing it.

Free vs Premium — what's included

Free

  • This full module-wise syllabus and topic list
  • The free revision course for this subject
  • Free core CS question bank and roadmaps
  • Aptitude and DSA practice sheets

Premium

  • Full lesson content for every module listed above
  • Module quizzes and interview question sets
  • Worked examples, numericals and revision drills
  • All 14 premium placement courses, lifetime access

Frequently asked questions

Can I revise the whole DSA syllabus in a week?

Yes, if you already studied the topics once. Plan roughly one module a day plus its timed drill; the cheatsheets are written for recall, not first-time learning.

What should I revise the night before a coding test?

Complexity thresholds, the pattern trigger list, binary search variants and your two weakest DP patterns. Solving new hard problems the night before hurts more than it helps.

Does this replace the full DSA course?

No. It assumes you have seen the concepts before. If a topic feels new while revising, open the corresponding module in the full DSA course.