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Single-Source All-Destinations Shortest Paths With Negative Costs

Single-Source All-Destinations Shortest Paths With Negative Costs. Directed weighted graph. Edges may have negative cost. No cycle whose cost is < 0 . Find a shortest path from a given source vertex s to each of the n vertices of the digraph.

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Greedy strategy At each iteration, it adds a part of the solution.

Greedy strategy At each iteration, it adds a part of the solution. Which part of the solution to add next is determined by a greedy rule . A greedy algorithm may or may not be optimal . The Coin Changing Problem. Given: a large collection of change and a value x .

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Greedy algorithm doesn - PowerPoint PPT Presentation

Single-Source All-Destinations Shortest Paths With Negative Costs

Greedy strategy At each iteration, it adds a part of the solution.