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Filtered by tag: DSA
90 essential interview coding problems organized by 20 patterns — step-by-step approach, JavaScript solution, hand-written trace, and demo calls with output.
50 essential array interview problems from easy to hard — step-by-step approach, JavaScript solution, and function calls with output comments.
Learn array fundamentals for DSA — O(1) access, O(n) insert/delete, contiguous memory, code breakdown, and an interactive operations visualizer.
Learn AVL trees — balance factor, rotations (LL/RR/LR/RL), guaranteed O(log n) search, interactive visualizer and database index examples.
Master Big O notation — O(1) to O(n!), time and space complexity, loop patterns, recurrence relations, growth chart, and an interactive complexity explorer with interview-ready examples.
Learn BSTs — left less, right greater, O(log n) search/insert, interactive visualizer, code breakdown, and auto-complete examples.
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