Legend to BFS and DFS #50
Description
The same kind of legend as in Prim and Dijkstra exercises could be added to BFS and DFS. However, the "spanning tree" and "fringe" are not currently visible in these exercises meaning that the legend cannot be the same as in Prim and Dijkstra. A draft pull request containing useful commits related to adding legend to these exercises exists in the old exercise development repository. It also contains some more notes related to the issue.