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Customized Hash Map for Ad Frequencies
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Customized Hash Map for Ad Frequencies

HardPython

Problem

Design an efficient system to track the frequency of specific ad requests using a customized hash map.

Implement process_ad_requests(operations, bucket_count). Each operation is ['record', ad_request] or ['frequency', ad_request]. Return a list containing the frequency for every frequency operation, while handling collisions without using Python dictionaries or sets.

Constraints

  • 1 <= operations.length <= 500
  • 1 <= bucket_count <= 10^4
  • Each operation has exactly two elements
  • The operation is either 'record' or 'frequency'
  • Each ad request is a non-empty string of at most 100 characters
  • The output contains one value for each 'frequency' operation
  • Do not use Python dictionaries or sets to store frequencies

Function Signature

def process_ad_requests(operations, bucket_count):
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