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Dev.to
Dev.to
7/4/2026
Data structures your CS degree kind of glossed over

Data structures your CS degree kind of glossed over

Short summary

Explores advanced data structures (Bloom filters, Cuckoo hashing, B-trees, Radix trees, Rope) beyond CS fundamentals, explaining their tradeoffs and real-world applications. Bloom filters sacrifice certainty for memory efficiency; Cuckoo hashing guarantees O(1) lookups; B-trees reduce disk I/O. These structures power databases, browsers, routers, and text editors.

  • Bloom filters: memory-efficient membership testing with acceptable false positives
  • Cuckoo hashing: guaranteed O(1) lookups using two hash functions and eviction strategy
  • B-trees: reduce disk I/O by allowing multiple children per node, used in databases and filesystems

Generated with AI, which can make mistakes.

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