Language-specific notes (syntax, idioms, and book summaries). These are supplementary to the main DSA content in Foundations and Patterns. Use them when you need a quick refresher on the language you’ll use in interviews.
Java notes: introductory book and Head First Java summaries. Useful for “Java vs Python” and interview language choice.
Interview tip
Prefer one primary language (e.g. Python or Java) for DSA rounds and know its standard library (e.g. collections, heap, sorting). See foundations/java-vs-python.md for a brief comparison.