Saved locally in this browser. Sync isn't connected on this device yet, so home and office won't match. Press the Sync button and enter your sync passcode. It then merges this device's progress with the database and keeps the latest.
Review
Day 28 of 140 · Week 4: Trees, Async and DB Scaling · Foundations
Week 4 Review
Phase 1 checkpoint. Confirm you can solve easy/medium array, stack, list and tree problems and explain async and scaling.
0/3 tasks · ~2h