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5 docs tagged with "fundamentals"

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Arrays & Strings

Indexing, slicing, and in-place operations for arrays and strings — the substrate for most other techniques.

Hash Maps & Sets

A working reference for the single most-used data structure in modern software — with the caveats that actually bite in production.

Linked Lists

Pointer-based sequential structures: mental models, in-place manipulation, and the fast/slow pointer patterns.

Recursion & The Call Stack

Theory, mechanics, visualizations, and optimization of recursion — the foundation for trees, backtracking, and DP.