LLD logger
Logger / rate-limited logger
levels, sinks, async flush, and a token bucket on noisy logs.
Week 6Wednesday 14 OctoberLLD
Day 40: LLD polish
0 of 4 tasks completed0%
LLD pubsub
In-process pub-sub
subscribe, publish, unsubscribe. Thread model. Slow-consumer policy.
LLD oop
Chess or deck of cards
Types, not a 40-class zoo. Show extension points (new piece / new game).
Coding trie
Implement Trie
LC 208. insert, search, startsWith. Then wildcard follow-up (LC 211) if fast.