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Books & Courses

Algorithms by Jeff Erickson jeffe.cs.illinois.edu https://jeffe.cs.illinois.edu/teaching/algorithms/

A freely available undergraduate algorithms textbook by Jeff Erickson at the University of Illinois. Covers sorting, graphs, dynamic programming, network flow, and NP-completeness with rigorous proofs and excellent problem sets. Widely regarded as one of the best free CS textbooks. [→ algorithms-data-structures; reference → books-literature]

GitHub - ossu/computer-science: Path to a free self-taught education in Computer Science! https://github.com/ossu/computer-science

A structured, free self-taught CS degree curriculum organized by the Open Source Society University. Covers math, programming, data structures, algorithms, systems, and theory using MOOCs from MIT, Stanford, and others — providing a complete undergraduate-level education without tuition. [→ algorithms-data-structures; career-personal]

GitHub - Coder-World04/Tech-Interview-Important-Topics-and-Techniques https://github.com/Coder-World04/Tech-Interview-Important-Topics-and-Techniques

A practical repository covering the most important topics and patterns for technical interviews at top companies. Includes data structures, algorithmic patterns, and system design; useful as a structured revision checklist before interviews. [→ algorithms-data-structures; data-engineering]