radhey_maa's blog

Centroid Decompostition in QTREE
By radhey_maa, history, 10 years ago, In English

Can QTREE be solved using centroid decomposition. I solved QTREE5 using the method, but I am struggling to solve QTREE using the method. Problem

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10 years ago, # |
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I see two solution ideas: 1) HLD + segment tree. 2) Link-Cut Tree (almost no extra code)

I don't think centroid decomposition is a good approach here due to the updates required. Although there may be a solution using centroid decomposition trees but that solution doesn't seem as obvious to me.

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    10 years ago, # ^ |
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    Thanks, but I just wanted to practice the technique. I don't know if this means that all QTREEs can be solved using centroid decomposition or it just involves distances on trees.

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