5) Use Dijkstra's algorithm to find the shortest route between node 1 and every other node in the network shown below SEP 6 7 6 7 3 9 S

4. (a) Use Dijkstra's algorithm to find the shortest path from node A to node F in the following network and give its length. A с 2 5 B 24 13 6 3 F D 14 Weight [kg] 40 50 60 40 250 200 70 190 1 E (b) A museum wants to ship 8 Roman statues for a special exhibition. They are to be transported in crates each holding a maximum weight of 300 kilograms. The numbers in the table represent the weight in kilograms of the statues: Statue Mercury Venus Tellus Mars Jupiter Saturn Caelus Neptune (i) Find the lower bound for the number of crates required to fit all statues. (ii) Use the first fit decreasing algorithm to estimate the minimum number of crates required to ship all statues. Does the first fit decreasing algorithm give an optimal solution? (iii) Find by trial and error a solution needing only & crates.

Consider the following network, where each number along a link represents the actual distance between the pair of nodes connected by that link. The objective is to find the shortest path from the origin to the destination. (a) For the forward recursion formulation of this problem, how many stages are there, and what arethe states for each stage? Stage 1: n = 1 Stage 2: n = 2 origin) ( Stage 3: n = 3 S A B C (b) Use forward recursion to solve this problem. However, instead of using the usual tables, show your work graphically. In particular, start with the given network, where the answers already are given for f (Sn) for four of the nodes; then solve for and fill in f2 (B) and fi* (0). Draw an arrowhead that shows the optimal link to traverse out of each of the latter two nodes. Finally, identify the optimal path by following the arrows from node O onward to node T. (c) Use forward recursion to solve this problem by manually constructing the usual tables for n = 3, n = 2, and n = 1.…

3. To defeat Electro, Spider-Man needs to connect all the pylons (vertices) in the graph below with his webbing to form an electric circuit, with the numbers representing the difficulty of making the connection. Show that the Nearest Neighbor algorithm will NOT work for Spidey for this given graph. Try at least two different starting points, one of which should be the top left corner. 3 11 3 12 5 2 9 14 1 8 7 10 9 0 13 16