conor0callaghan
Programmer
Can anyone tell me which is better and why?
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Vector or Hashtable
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Both.
If your data can be stored based on keys consisting of a contiguous set of integers, then a vector is better than a hash table.
If your data must be stored based on keys that are non-integer or are not contiguous then maybe a hash table is better than a vector.
There are thousands of other situations where one might be better than the other.
P.S. A vector is a hash table with integer keys where Hash(x) = x.
If your data can be stored based on keys consisting of a contiguous set of integers, then a vector is better than a hash table.
If your data must be stored based on keys that are non-integer or are not contiguous then maybe a hash table is better than a vector.
There are thousands of other situations where one might be better than the other.
P.S. A vector is a hash table with integer keys where Hash(x) = x.
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