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GATE | GATE 2017 MOCK II | Question 20
Consider the following statements:
S1 : DFS of a directed graph always produces the same number of edges in the traversal, irrespective of the starting vertex.
S2 : If all of the back edges that are found while DFS traversal on directed graph are removed, the resulting graph is acyclic.
Which of the following statements above are valid ?
S1 : DFS of a directed graph always produces the same number of edges in the traversal, irrespective of the starting vertex.
S2 : If all of the back edges that are found while DFS traversal on directed graph are removed, the resulting graph is acyclic.
Which of the following statements above are valid ?
(A)
Both S1 and S2 are valid
(B)
Only S1 is valid
(C)
Only S2 is valid
(D)
Neither s1 nor S2 is valid
Answer
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