Question: 1 0 . 3 . 2 A directed Euler tour of D is a directed tour that traverses each arc of D exactly once. Show

10.3.2 A directed Euler tour of D is a directed tour that traverses each arc
of D exactly once. Show that D contains a directed Euler tour if
and only if D is connected and d+(v)= d-(v) for ail v EV.

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