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Data Structures & AlgorithmsComplexity analysis up to graphs and DP.Operating SystemsProcesses, scheduling, memory and concurrency.Database Management SystemsRelational modelling, transactions and indexing.Computer NetworksFrom wires and radio waves up to the web.

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AI Inference EngineeringQuantization, batching and KV caching in production.System DesignScalable systems from first principles.Context EngineeringDesigning the context that LLMs actually reason over.Docker & KubernetesContainers and orchestration, explained.

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Data Structures & Algorithms

Python Essentials1

Arrays & Strings4

Searching & Sorting14

String Algorithms4

Stacks & Queues2

Heaps & Priority Queues1

Greedy & Backtracking2

Greedy Algorithms
Backtracking

Dynamic Programming5

Bit Manipulation1

Advanced Structures4

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Data Structures & Algorithms

Python Essentials1

Arrays & Strings4

Searching & Sorting14

String Algorithms4

Stacks & Queues2

Heaps & Priority Queues1

Greedy & Backtracking2

Greedy Algorithms
Backtracking

Dynamic Programming5

Bit Manipulation1

Advanced Structures4

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Backtracking

Try every option, undo the ones that fail, and prune branches that cannot possibly work.

11 min readUpdated 2026-09-01backtrackingrecursion