If (u, v) ∈ E, we say that u is origin of the edge (u, v) and v is destination
of the same edge. A graph can be drawn by representing the vertices by points
and edges by arrows. Namely, if (u, v) is an edge, we draw in arrow that begins
at u and ends at v.
If (u, v) ∈ E, we say that u is origin of the edge (u, v) and v is destinationof the same edge. A graph can be drawn by representing the vertices by pointsand edges by arrows. Namely, if (u, v) is an edge, we draw in arrow that beginsat u and ends at v.
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