I created an interactive guide to help build intuition for recognizing time complexity from code patterns.
What's inside:
Live code editor with visual feedback as you adjust input sizes
Examples ranging from O(1) to O(n!) with interactive visualizations
Coverage of core principles like "constants drop out" and "nested operations multiply"
Master Theorem breakdown with practical examples
Real algorithm analysis (merge sort, binary search, etc.)
The idea is simple: add op() markers to your code and watch the complexity curves appear as n increases. You can experiment with loops, recursion, or drop in your own algorithms to see how they scale.
Built with Next.js and deployed at https://sbondaryev.dev/articles/big-o-notation.
Feedback welcome!
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