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Week 9

Sunday, March 1, 2026
•
1:00 PM - 3:00 PM GMT

Session #9

Join us for an intensive 2-hour deep dive covering algorithms, frontend development, and system architecture.

Algorithms

4 problems

1

347. Top K Frequent Elements

2

54. Spiral Matrix

3

1838. Frequency of the Most Frequent Element

4

128. Longest Consecutive Sequence

Frontend

3 challenges

1

17. Create a simple store for DOM element

2

18. Improve a function

3

Debug `useFetch` Memory Leak: You're given a `useFetch` hook. Identify and fix the memory leak that happens when the component unmounts before the fetch completes.

Architecture

2 topics

1

Message Queues (e.g., Kafka, RabbitMQ)

2

Design a Chat App (e.g., WhatsApp)

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