Interview prep for coding rounds

A useful session is 45 minutes, not an afternoon of scrolling. Take one JavaScript or Python question, say the answer out loud, then write it. If you stall on this, closures, or list slicing, stay in that topic until you can explain the trade-off without looking at the notes.

When the question is about scale — rate limits, short URLs, caches — switch to the system design course. The labs under /system-design/labs are for poking at sharding and consistency, not for reading another list of talking points.

Quizzes are for recall. Use Python MCQs after a chapter, or GATE CS PYQs if you also sit that paper. Do not mix a mock test with learning a new topic in the same sitting.