hashtabulky
Hashtabulky, commonly known as hash tables, are a data structure that stores associations between keys and values. They map a key to an index in an array using a hash function, and the corresponding value is stored at that bucket. The primary advantage is fast average‑case performance for insertions, lookups, and deletions, typically constant time, given a good hash function and a moderate load factor.
Collisions occur when two different keys hash to the same bucket. They are resolved mainly by separate
Core operations include insert, search, and delete. Performance depends on the load factor and the quality of
Design considerations include choosing a robust hash function, selecting a suitable maximum load factor, and resizing
Common uses encompass dictionaries in programming languages, caches, symbol tables in compilers, and database indexing. Hash
History notes: Hashing concepts emerged in the mid‑20th century, with hash tables becoming a widely adopted