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Results tagged with hash-tables
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user 17693
A finite map data structure that addresses stored values using a function that maps many values to few addresses.
4
votes
How are hash tables O(1) taking into account hashing speed?
The tale that hash tables are amortized $\Theta(1)$ is a lie an oversimplification.
This is only true if:
- The amount of data to hash per item is trivial compared to the number of Keys and the spe …
- 1,090
6
votes
Hash table collision probability
What are the odds of a collision given a fixed hash table size?
Size of hashtable
When hashing $k$ items into a hash table with $n$ slots, the expected number of collisions is
$n - k + k(1-{\frac …
- 1,090