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Results tagged with np-hardness
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user 53717
Questions related to NP-hardness and NP-completeness.
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Recent progress on the next-to-shortest-path problem for directed graphs?
In the paper "Computing strictly-second shortest paths" (1997), Lalgudi and Papaefthymiou consider the following problem:
Let $G$ be a directed graph with edge-weighting $w$. Let $u,v$ be vertices in …
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