A few colleagues decided to carpool on the way to work. The following map displays the routes between their homes.
Starting from house $A$A, what is the shortest path that visits every house exactly once?
Represent the path by listing the vertices in order, separated by commas.
A mailman was allocated an area to deliver the mail to. The following table represents the routes and times between the houses.
A courier business has to make multiple pick-ups from several stores. The following map displays the routes between the stores.
A canned goods company has to make drops at every store in an area. The following map displays the routes between the stores.