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In a hash table, what is the purpose of a hash function?

Practice Questions

Q1
In a hash table, what is the purpose of a hash function?
  1. To sort the data
  2. To convert keys into indices
  3. To store data in a linked list
  4. To manage memory allocation

Questions & Step-by-Step Solutions

In a hash table, what is the purpose of a hash function?
  • Step 1: Understand that a hash table is a data structure used to store data in a way that allows for quick access.
  • Step 2: Know that each piece of data in a hash table is associated with a unique key.
  • Step 3: Learn that a hash function is a special formula that takes a key and turns it into a number called an index.
  • Step 4: Realize that this index tells the hash table where to find the data associated with that key.
  • Step 5: Remember that using a hash function helps to quickly locate and retrieve data, making the process efficient.
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