Data Structures & Algorithms
The course that decides your internship. Written on a shared editor with someone who has passed the interview.
$10 to $12 a month, per tutor
Someone here teaches Data Structures & Algorithms.
Subscribe to them and every lesson, note and quiz they publish for this course opens, with an email whenever a new one lands.
What you walk out with
- Pick the right structure in under 30 seconds
- Prove a complexity bound out loud
- Write clean recursion and dynamic programming
- Pass a live coding screen without panic
- 34
- lessons
- 26h
- of live time
- 38
- tutors on it
The pathway
6 units to data structures & algorithms.
Start at unit one and keep going, or jump to the unit that is actually on your exam. About 11 hours of live teaching end to end.
Complexity
Big-O as a tool for decisions, not a vocabulary test.
Unit 1 of 6 · 70 min
Arrays, strings, hashing
The 60% of interviews nobody drills properly.
Unit 2 of 6 · 110 min
Trees and graphs
Traversals, BFS, DFS, and the shortest-path family.
Unit 3 of 6 · 140 min
Sorting and searching
Why the standard library already won.
Unit 4 of 6 · 90 min
Dynamic programming
State, transition, base case, in that order.
Unit 5 of 6 · 150 min
System design primer
Enough to survive the senior-round question.
Unit 6 of 6 · 120 min
End of the pathway. You can teach this back.
