Design and implement the Least Recently Used Cache with TTL(Time To Live)
Expalnation on the eviction stragedy since people have questions on the testcase:
1, after the record expires, it still remains in the cache.
2, when the cache reaches the capacity, it first evicts the expried records. If there are more than one expired records, evict the one with the minimum expire timestamp.
Learn from Facebook, Google, Uber senior engineers interviewed 100+ candidates.aonecode.com
Most recent interview questions and system design topics gathered from aonecode alumnus.
One-to-one online classes. Get feedbacks from real interviewers.
Already a coding expert? - Advance straight to hard interview topics of your interest.
New to the ground? - Develop basic coding skills with your own designated mentor.
Days before interview? - Focus on most important problems in target company question bank.