Java / Map and its implementations
What is the Big-O notation for operations in a Hashmap?
Hashmap best and average case for Search, Insert and Delete is O(1) and worst case is O(n).
Hash tables are the implementation of associative arrays. Associative arrays, the abstract data structure mapping keys to values. Implementations of associative arrays using self-balancing binary search trees have lookup that is O(log n) in the worst case.
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