2 Strong Components (dynamic) (Strongly Connected Components)

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maintain: a directed graph, under: edge insertion/deletions, answer: are there more than 2 strongly connected components?

Related Problems

Related: Strongly Connected Components, Transitive Closure, Maximum Strongly Connected Component, Strong Connectivity (dynamic), Connected Subgraph


$V$: number of vertices

$E$: number of edges

Table of Algorithms

Currently no algorithms in our database for the given problem.

Reductions FROM Problem

Problem Implication Year Citation Reduction
CNF-SAT if: to-time: $O(m^{1-\epsilon})$ amrotized update and query times on sparse graphs, for any $\epsilon > {0}$, even after arbitrarily long polynomial time preprocessing
then: SETH is false
2014 https://ieeexplore.ieee.org/abstract/document/6979028?casa_token=daaoBjrHUa4AAAAA:DCjk_WMWZ5Is6KvGpmS8a2bL9LskvV0P1zEG4U2u-Tm_C8sixu1w65OpTyjml1HEpaikXhtYsg link