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C99 implementation of new O(m log^(2/3) n) shortest path algorithm

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HN · launched Feb 23, 2026 · 111 upvotes (top 10%) · 0 views

Niche: specialized algorithms and computing libraries · 230 launches, 4 in the last 7 days ▼ -73% · Explore this niche →

Category and tags

  • Horizontal
  • Dev tools
  • Developer
  • Not AI
  • Hobby / open-source project

Visit website ↗ Source listing ↗

Could you build this?

No Implementing a cutting-edge theoretical graph algorithm with complex asymptotic bounds in pure C99 requires deep mathematical graph theory expertise and algorithmic implementation skills that AI assistants routinely hallucinate on.

What it would actually take: Requires translating advanced theoretical computer science papers (such as recent sub-logarithmic shortest path algorithms) into correct, bug-free C code. The hard parts involve implementing complex hierarchical graph decompositions, specialized priority queue data structures, and intricate recursive state tracking while managing manual memory in C99. This demands specialized theoretical computer science expertise and competitive-programming-level low-level systems engineering.

Discussion

20 comments analyzed.

Competitors mentioned: Fibonacci heap implementations, BMSSPy (Python BMSSP library), C++ BMSSP reference implementation, Established graph algorithm libraries

Concerns raised: Code is AI-generated (not peer-reviewed implementation), Benchmark results appear fabricated or compiler-dependent, Extreme speedup claims (20,000x-1.2M x) only reproducible with specific compiler flags, DMMSY(res) implementation doesn't match claimed algorithmic complexity, Unfair comparison - custom Dijkstra implementation may have heap allocation overhead

Feature requests: Transparent explanation of AI generation process and methodology, Fair apples-to-apples comparison with same optimization levels for all algorithms, Benchmarks against established Dijkstra libraries and reference implementations, Real-world performance data on realistic (non-sparse/tree-like) graphs

Competitors

Other products that read as similar to this one : 797 launches clear the similarity bar, closest 8 shown.

Attention rank: #66 of 798 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 115 days after the earliest competitor.

  • c-hd-proof · github · 2026-09-21 · 44 upvotes · similarity 0.65
  • Remap · hn · 2026-08-26 · 12 upvotes · similarity 0.56
  • pi-jev-router · github · 2026-09-20 · 12 upvotes · similarity 0.54
  • TokenRouter · github · 2026-10-08 · 51 upvotes · similarity 0.51
  • RESPLE2 · github · 2026-10-27 · 31 upvotes · similarity 0.50
  • LLMRouter · hn · 2025-12-31 · 5 upvotes · similarity 0.50
  • C-Tunnel · github · 2026-10-25 · 18 upvotes · similarity 0.49
  • chalk-router-oss · github · 2026-10-28 · 39 upvotes · similarity 0.49

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