Data Structures & Algorithms
When you finish, you can
Pick the right data structure and algorithm for a problem, implement it, and explain its speed in Big-O terms.
Start hereYou need CS-101. Implement every structure yourself before using the library version.
Debate a counselor
Take a position on Data Structures & Algorithms. The AI counselor argues the other side, asks you questions back, and cites a source for every fact it states. Sources listed under a reply are the pages it actually found; if none are listed, it is arguing from reasoning only. It is an AI and it can be wrong: check the sources.
What changed
Loading…
Discuss this course
A room for people taking this course, in any language, translated for every reader. Open breakout rooms for one question at a time.
Enter the course roomCourse Syllabus
9h total- Static vs Dynamic Arrays25 min
- Singly Linked Lists25 min
- Doubly Linked Lists25 min
- Performance Analysis25 min
Practice
- Write a singly linked list with append, insert-at-front and delete.
- Time inserting 100,000 items at the front of a Python list versus your linked list.
- Add a doubly linked list and a `reverse()` method.
Check
Why is inserting at the front O(n) for an array and O(1) for a linked list?
Topics Covered
Ready to start?
Free. No account required. Progress saves in this browser — no account exists.
Start This Course