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2 cards from this section. Quick, good the night before a test.
What is the initial distance set for all vertices except the source in the Bellman-Ford algorithm?
Think about how prepared we need to assume our distances are at the start.
How many iterations does the Bellman-Ford algorithm perform?
Consider the maximum number of edges between vertices.
What does the Bellman-Ford algorithm initialize the source vertex distance to?
Think about how we would represent distance to ourselves compared to other vertices.
True or False: The Bellman-Ford algorithm can handle graphs with negative cycles.
Consider the implications of a path going to infinity.
Design a graph with at least one negative edge and demonstrate how the Bellman-Ford algorithm would identify the shortest path from a designated source.
Focusing on how each path refines the distances will guide your answer!
Explain how you would modify the Bellman-Ford algorithm to detect negative cycles in your graph.
Think about what continuously changing distances signify in your path calculations.
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