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hash tables

Hash Table with Open Addressing

A Hash Table with Open Addressing resolves collisions by probing for the next available slot within the table itself, rather than using external chains. Linear probing, the simplest variant, checks consecutive slots until an empty one is found. This approach has better cache performance than chaining since all data resides in a contiguous array.

Use Cases

  • Memory-constrained environments requiring cache-friendly lookups
  • Implementing fast in-memory key-value stores
  • Hash-based sets with minimal overhead

Complexity Analysis

MetricBestAverageWorst
TimeO(1)O(1)O(n)
SpaceO(n)

Visualization

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Speed:1x
Hash table with 7 bucketsStep 1 / 18

Implementation

Output

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