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When do you say that a digraph is acyclic
A)if and only if its first search does not have back arcs
B)a digraph is acyclic if and only if its first search does
not have back vertices
C)if and only if its first search does not have same
dfnumber
D)None of these



When do you say that a digraph is acyclic A)if and only if its first search does not have back arcs..

Answer / liamsi422

i

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