DSA Notes
Free, structured, and high-quality PDFs to help you learn key Data Structures with ease.
Foundational
Stacks, Queues & Linked Lists – Purdue University
35-page PDF with intuitive diagrams and operations breakdown.
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Linked List Lecture Notes – CMU
Short, sharp explanation with C code for push, pop, and traverse.
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Handwritten sheets, cheatbooks, and topic-wise DSA PDFs are in progress. Stay tuned!