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I don't understand how come $G_1$ is a connected component? It is obvious that $V_1$ cannot travel to $V_3$
2026-03-27 07:11:37.1774595497
a question about connected graph
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A connected component is a set of nodes and edges such that there is a walk (a set of edges) connecting any node to any other within the component. So $G_1$ is a connected component since you can reach any $V_i$ from any $V_j$ for $i,j\in\{1,2,3\}$.