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Cheat sheet

• 24 Nov, 2025
• • Revision

Phase 1 Revision & Buffer

Week 18 is a breather. A topic-by-topic recap of Phase 1, a keyword-to-pattern cheat sheet, and the spaced-repetition plan I use for the problems that didn't stick.

• 19 Jul, 2025
• • Basics

Time and Space Complexity

Week 0 notes on the thing every later topic is measured against: how to read time and space complexity, plus the Big-O cheat sheet I use to guess what runtime a problem actually wants.