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GATE 2015 · Session-1
AlgorithmsGraph AlgorithmseasyMCQ2 marks
Let G=(V,E) be a simple undirected graph, and s be a particular vertex in it called the source. For x ∈ V, let d(x) denote the shortest distance in G from s to x. A breadth first search (BFS) is performed starting at s. Let T be the resultant BFS tree. If (u,v) is an edge of G that is not in T, then which one of the following CANNOT be the value of d(u)−d(v)?
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