CSA - BFS-DFS Problem

[Dayouter]

[CS Academy]
I don’t think this problem has anything to do with " Shortest Paths with Unweighted Edges", but it has been put in this place in USACO guide.
[Shortest Paths with Unweighted Edges · USACO Guide]

[Benq]

Feel free to move it to this module: Graph Traversal · USACO Guide