Which application of hash tables is most suitable for implementing a phone book?

Practice Questions

Q1
Which application of hash tables is most suitable for implementing a phone book?
  1. Storing names in alphabetical order
  2. Quickly retrieving phone numbers by name
  3. Sorting phone numbers
  4. Finding the longest name

Questions & Step-by-Step Solutions

Which application of hash tables is most suitable for implementing a phone book?
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