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Explain Complexity and Design
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Explain Complexity and Design

MediumPython

Problem

Then asked me questions about complexity and why I designed it that way.

Implement count_cache_misses(requests, capacity) for a least recently used cache. Return the number of requests that are not currently cached. A cache hit refreshes that request's recency; a miss inserts it, and inserting beyond capacity evicts the least recently used request.

Input/output: requests is a list of integers, capacity is a positive integer, and the function returns an integer miss count.

Constraints

  • 0 <= requests.length <= 10^4
  • 1 <= capacity <= 10^4
  • Requests contain integers
  • Return the number of cache misses

Function Signature

def count_cache_misses(requests, capacity):
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