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Filtered by tag: Algorithms
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.
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 binary search — halve sorted array each step, O(log n) lookup, lo/hi/mid visualizer, code breakdown, and common off-by-one pitfalls.
Learn bubble sort with step-by-step visuals — adjacent swaps, pass-by-pass animation, O(n²) complexity, code breakdown, and interactive bar chart.
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