Question: (a) When do you need to apply Backtracking? Explain. [2 marks] (b) For the following graph, list the vertices in order of a breadth-first search

(a) When do you need to apply Backtracking? Explain. [2 marks]

(a) When do you need to apply Backtracking? Explain. [2 marks] (b) For the following graph, list the vertices in order of a breadth-first search starting at vertex E. Assume adjacent vertices are accessed in an increasing alphabetical order

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