Course catalog
Read, trace, and judge any code — including the AI’s.
When agents write the boilerplate, the scarce skill becomes reading and judging code — and studies show beginners struggle more to understand AI-generated code than the prompt that made it, and over-trust it. This course rebuilds the durable fundamentals for the AI era: tracing execution line by line, building a mental model of what code really does, and predicting output. You'll learn the core data structures and when to use each, Big-O without the math, and how to spot the subtle bug, the missing edge case, and the unreadable function in code an AI just handed you.
Section 1
Trace execution and predict output.
Section 2
Lists, maps, sets, and when to use each.
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Get startedSection 3
How work grows with input size.
Section 4
Find bugs, edge cases, and unreadable code.