$ ls -la /posts
total: 2 (tag #python)
$ open windows.mode
Array vs Hash Map Lookup — What Really Wins in Performance?
Why array index lookup often beats hash map lookup in practice, even though both are O(1). Understanding constant factors, CPU cache, and real-world performance.
#data-structures#performance#algorithms
Array Fundamentals
A complete guide to arrays from first principles — what they are, how they work, common operations, and the core techniques every programmer should know.
#data-structures#algorithms#arrays