← Back to Home

Course 14 · ₹1

DSA in Python, JS & PHP — Basic to Advanced

One mental model for data structures & algorithms, shown side-by-side in three languages, all the way to interview-grade patterns.

📺 18 lessons·⏱ ~240 minutes·🎯 Developers prepping for interviews or finally wanting DSA to click — comfortable with basic syntax in at least one of Python, JavaScript, or PHP.·₹1 one-time
Checking access…← All courses

What you'll cover

1Big-O — How to Measure Code (Not Guess)
14 min
2Arrays & Strings — The Foundation
13 min
3Hash Maps — The O(1) Superpower
14 min
4Two Pointers & Sliding Window
14 min
5Stacks & Queues
13 min
6Linked Lists
14 min
7Recursion & Backtracking
14 min
8Sorting — And When To Just Use the Built-in
13 min
9Binary Search — O(log n) on Sorted Data
12 min
10Trees & Binary Search Trees
14 min
11Graphs — BFS & DFS
15 min
12Greedy Algorithms
13 min
13Bit Manipulation
13 min
14Tries (Prefix Trees)
14 min
15Union-Find (Disjoint Set)
14 min
162D Grids & Matrix Traversal
14 min
17Intervals & Sorting-Based Patterns
13 min
18Heaps, Dynamic Programming & Interview Patterns
17 min
What's next

Finished this course? Take the next step:

Build something with it: Your First AI Agent →