Comprehensive interview preparation covering theory, implementation, pattern recognition, and tricky variations.

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#	Topic	File
1	Theory & Fundamentals	Complexity, prerequisites, loop invariants, edge cases
2	Pattern Recognition	How to choose which pattern to use for any problem
3	Tricky Variations	Hard edge cases, ambiguous conditions, real interview scenarios

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#	Question	Difficulty	Category
1	Explain O(log n) complexity	🟢 Easy	Theory
2	Compare iterative vs recursive BS	🟢 Easy	Theory
3	What are the loop invariants?	🟡 Medium	Theory
4	How do you choose lo <= hi vs lo < hi?	🟡 Medium	Theory
5	Identify BS from problem description	🟡 Medium	Recognition
6	Koko Bananas — walkthrough	🟡 Medium	Answer Space
7	Search in rotated array	🟡 Medium	Rotated
8	Median of Two Sorted Arrays	🔴 Hard	Advanced
9	Peak element in 2D	🔴 Hard	Advanced
10	Find kth smallest in sorted matrix	🔴 Hard	Advanced
11	Floating-point precision issues	🟡 Medium	Edge Cases
12	Infinite loop debugging	🟡 Medium	Debugging

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Start with: Theory & Fundamentals →