English

A Faster Directed Single-Source Shortest Path Algorithm

Data Structures and Algorithms 2026-02-11 v2

Abstract

This paper presents a new deterministic algorithm for single-source shortest paths (SSSP) on real non-negative edge-weighted directed graphs, with running time O(mlogn+mnlognloglogn)O(m\sqrt{\log n}+\sqrt{mn\log n\log \log n}), which is O(mlognloglogn)O(m\sqrt{\log n\log \log n}) for sparse graphs. This improves the recent breakthrough result of O(mlog2/3n)O(m\log^{2/3} n) time for directed SSSP algorithm [Duan, Mao, Mao, Shu, Yin 2025].

Keywords

Cite

@article{arxiv.2602.07868,
  title  = {A Faster Directed Single-Source Shortest Path Algorithm},
  author = {Ran Duan and Xiao Mao and Xinkai Shu and Longhui Yin},
  journal= {arXiv preprint arXiv:2602.07868},
  year   = {2026}
}