Tree Distances II | DFS | Rerooting Technique

In this video, I shall discuss the problem tree Distances - II
Prerequisite: tree
Code implementation in C++:
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Code implementation in Java:
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Code implementation in Python:
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[@hopittyhop]

Nicely Explained!

[@prasantkumar7693]

Thank you for sharing and posting this helpful video

[@ramandeep_8421]

Glad it was helpful!

[@vasugupta2246]

Great sir.

[@ramandeep_8421]

Thank you :)

[@shivansh-gup]

most clear explanation for this question. Also the observation that change = no. of edges not part of subtree - no. of edges part of subtree , is from observation only right?
Like you have to observe what formula is the tree following in different tree rerooting problems ?

[@ramandeep_8421]

yes