Mock
45-min LLD — lot or scheduler
Classes, sequence for one happy path, then one failure path.
Week 7Tuesday 20 OctoberMock
Day 46: LLD mock
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LLD concurrency
Concurrency and tests
What is shared. What is locked. Two tests you would write first.
Coding design
One LC design problem
146 / 355 / 380 (RandomizedSet). Code it like an interview, not a contest.
Behavioral star
10-min story if they weave it in
Practice landing a story after an LLD without losing the thread.