Simple Uniform Hashing Assumption
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چکیده
Hash Tables A hash table is a data structure with the following operations: • INSERT(k, v): insert an item with key k and value v • SEARCH(k): searches the hash table for key k • DELETE(k): deletes key k from the hash table Goal is to have each of these operations in O(1) time. You can think of a hash table as a list of m slots. Inserting a key puts it in one of the slots in the hash table, deleting a key removes it from the slot it was inserted in, and searching a key looks in the slot the key would have been inserted into to see if it is indeed there. Empty slots are designated with a NIL value. The big question is figuring out which slot should a key k be inserted into in order to maintain the O(1) runtime of these operations.
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