Showing Posts From
Basics
- 21 Jul, 2025
Hash Tables & Sets - Time & Space Complexity
Week 0 notes on how Python dicts and sets work under the hood, the Big-O of their operations, and when to use them over a list.
- 20 Jul, 2025
Lists, Arrays & Strings: Big-O Overview
Week 0 notes on Python lists and strings through a Big-O lens: static vs dynamic arrays, the cost of every common operation, and the cheat sheets I check before writing loops.
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- 19 Jul, 2025
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.