Question: Consider the graph below: digraph G3 { 1 -> 2 [label=1.5]; 2 -> 3 [label=3]; 3 -> 4 [label=4]; 1 -> 4 [label=1]; 4 ->

Consider the graph below: digraph G3 { 1 -> 2 [label="1.5"]; 2 -> 3 [label="3"]; 3 -> 4 [label="4"]; 1 -> 4 [label="1"]; 4 -> 3 [label ="1"]; 3 -> 2 [label ="-1"]; } The following questions pertain to the steps of the Bellman-Ford algorithm for single source shortest path for source node 1. (A) What is the initial distance estimate for the node 1 ? Answer (B) What is the initial distance estimate for the node 4 ? Infinite 0 10 3 (C) Suppose, we use edge (1,4) to relax the initial distance estimate, what is the updated distance estimate for 4 ? Answer Subsequent to part (C), we now use edges (4,3) and (1,2) to relax. (D) What is the new distance estimate for node 3? Answer (E) What is the new distance estimate for node 2? Answer (F) Which of the edges should we relax to further update the distance estimate for node 2? (3,2) (1,2) (2,3) (1,4) (3,4) (G) How many iterations will the outer loop of Bellman-Ford need to run for this graph? Answer After the Bellman-Ford algorithm has finished running, what are the distance estimates for each of the nodes

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