Phases, strictly nested
Every problem in Blind 75 is also in Top 150, which sits inside SDE 250, inside DSA 450, inside the Vault. Solve something once and it stays solved in every larger phase, marked as carried over.
486 distinct problems across five containers
Choose your phase
The active phase drives the daily planner and the recommendation engine.
The smallest set that still covers every core pattern. If you only have a month, this is the month.
Blind 75 plus the 75 problems interviewers reach for when they want a second question.
Adds the classics that Indian product-company interviews lean on, plus implementation-heavy staples.
Full syllabus coverage. Every topic, every pattern, enough repetition that recall becomes automatic.
Everything in the bank, including the advanced and rarely-asked material. For competitive rounds and long runways.
How the phases work
Each phase contains the previous one whole. Moving up never resets anything or asks you to redo work.
In a larger phase, problems you cleared earlier show a badge naming the phase where you solved them.
Problems inside your active phase get a large scoring boost, so the daily plan stays on the sheet you chose.