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2 Dijkstra ( 2 0 pts ) Execute Dijkstra's algorithm on the weighted graph below, starting from the source node s at the bottom. Anotate

2 Dijkstra (20 pts)
Execute Dijkstra's algorithm on the weighted graph below, starting from the source node s at the bottom. Anotate the nodes with their (incrementally imrpoving) distance-from-s upper-bound, taking care to write these values smally and neatly. Whenever you update a node with a new, immproved distance bound, don't erase it or scribble it out but neatly draw a line through it and write the new distacne next to it, maintaining at least a semi-visiivle record of the scries of imporvements the node went through over the course of the algorithm. SImilarly, until a node is finalized ("closed"), draw its parent back-edge arrows neatly and faintly so that you'll be able to neatly draw a line through them when they are superceded. Finally, each time you finalize a node, draw a dark circle around it, and make its parent back-edge arrow bold as in class.
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