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GATE | GATE-CS-2014-(Set-3) | Question 23
Suppose depth first search is executed on the graph below starting at some unknown vertex. Assume that a recursive call to visit a vertex is made only after first checking that the vertex has not been visited earlier. Then the maximum possible recursion depth (including the initial call) is _________.
![GATECS2014Q20]("http://www.geeksforgeeks.org/wp-content/uploads/gq/2014/04/GATECS2014Q20.png")
(A)
17
(B)
18
(C)
19
(D)
20
Answer
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