DSA in System Design
See how data structures and algorithms power large-scale systems, from caching to rate limiting.
See how data structures and algorithms power large-scale systems, from caching to rate limiting. This hands-on tutorial focuses on practical implementation of dsa in system design concepts.
DSA in System Design
Algorithm skills aren't just for interviews; they are the building blocks of the tools and services you use every day.
1. LRU Cache (Least Recently Used)
A cache stores frequently accessed data for fast retrieval. An LRU Cache removes the least recently used item once it reaching its capacity.
The Hybrid Structure: Hash Map + Doubly Linked List
- Hash Map: Provides O(1) lookup to find the node.
- Doubly Linked List: Provides O(1) movement of nodes to the "Most Recent" front.
2. Rate Limiting (Token Bucket)
Web services use algorithms to limit how many requests a user can make. The Token Bucket algorithm is a popular choice.
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Quiz
Quiz
Question 1 of 1Which combination of data structures is ideal for implementing an LRU cache with O(1) operations?