LLD Dojo

Interview readiness

Everything that has to be true before you walk into a loop, with a definition of done on every row. Ordered, not scheduled. Nothing here has a date and nothing here can be missed.

0% critical path — the 99 rows that decide when you start applying

0% full coverage — all 266 rows. Nobody finishes this, and it is not the target.

The route through the map, not the map. These are the rows that must be TRUE before you walk into a loop — including the ones that are already true. That distinction matters: an earlier version marked only unfinished work, so Java + LLD showed 0% while thirteen of its prerequisite chapters were green. A percentage that hides work you have done is worse than no percentage. When this is green you are ready enough to START APPLYING. You are not finished; you keep filling the rest while you are in loops, because loops are the only thing that trains composure under clock.

● green — held. Produce it from blank, under a clock, no lookup. ● yellow — shaky. Counts half. ● blue — not started.

Marks live in this browser only, so they never leave your machine and never reach a server. They do not sync between your phone and the Mac — export and import is the bridge. Adding or retiring a row is stored the same way, which means this page stays fully editable with no redeploy.

Seeded 2026-09-25 research pass: per-company loop structure and question shapes for Uber, Atlassian, Salesforce, Microsoft, Visa, Google L4; AZ-202 module list from pratyush-dsa-guidance.pdf; course/_index.json; llm-lab/FAST-TRACK.md.