Question: Show that edge (u, ) is a. a tree edge or forward edge if and only if u.d < .d < .f < u.f, b.

Show that edge (u, ν) is

a. a tree edge or forward edge if and only if u.d < ν.d < ν.f < u.f,

b. a back edge if and only if ν.d ≤ u.d < u.f ≤ ν.f, and

c. a cross edge if and only if ν.d < ν.f < u.d < u.f.

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