Low-level design (LLD)

Machine-coding problems. Read the requirements, write the classes yourself in a plain editor, then compare with the checklist. Working code beats perfect diagrams.

0/10
  1. 1
    Parking Lot

    The most common machine-coding round. Tests object modelling, extensibility and pricing logic.

    Easy–Medium
  2. 2
    Splitwise
    coming soon
  3. 3
    Rate Limiter (in-process)
    coming soon
  4. 4
    LRU Cache
    coming soon
  5. 5
    BookMyShow
    coming soon
  6. 6
    Elevator System
    coming soon
  7. 7
    Snake and Ladder
    coming soon
  8. 8
    Logging Framework
    coming soon
  9. 9
    Vending Machine
    coming soon
  10. 10
    Pub-Sub Queue
    coming soon