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

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

Options:

  1. To sort the data
  2. To convert keys into hash codes
  3. To store data in a binary tree
  4. To manage memory allocation

Correct Answer: To convert keys into hash codes

Solution: 

The hash function converts keys into hash codes, which are then used to determine the index in the hash table where the corresponding value is stored.

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

Practice Questions

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

Questions & Step-by-Step Solutions

In a hash table, what is the purpose of the hash function?
  • Step 1: A hash table is a data structure that stores key-value pairs.
  • Step 2: Each key is a unique identifier for a value in the hash table.
  • Step 3: The hash function takes a key as input.
  • Step 4: The hash function processes the key and produces a hash code, which is a number.
  • Step 5: This hash code is used to find an index in the hash table.
  • Step 6: The index tells us where to store or find the corresponding value in the hash table.
  • Hash Function Purpose – The hash function is used to convert keys into hash codes that determine the index for storing values in a hash table.
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