Prep Batches

Structured prep you work through at your own pace. Day-wise tracks collect the videos, practice and reading worth doing, so there's no guesswork about what comes next; problem sheets take you topic by topic through the DSA questions that matter.

Day-wise tracks

30 days
Data Science & Machine Learning
A self-paced 30-day track
Start track

Problem sheets

428 problems · 21 topics
A2Z DSA Sheet
Every problem from basics to dynamic programming, in the order worth learning them.
123 Easy178 Medium127 Hard
Open sheet
180 problems · 17 topics
SDE Sheet
The must-do coding interview problems, grouped by the pattern that cracks them.
2 Easy109 Medium69 Hard
Open sheet