help in a graph problem(bfs)

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help in a graph problem(bfs)

Revision en1, by abdallah_youssef, 2021-05-21 18:22:38

i don't know how to solve this problem even after i read the editorial, i just understand the bfs part https://codeforces.me/problemset/problem/1037/D

Revisions

	Rev.	Lang.	By	When	Δ	Comment
	en1		abdallah_youssef	2021-05-21 18:22:38	184	Initial revision (published)