In The Union/Find Algorithm, The Ranks Of The Nodes On A Path Will Increase Monotonically From?

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Editor Staff asked 5 months ago

In the Union/Find algorithm, the ranks of the nodes on a path will increase monotonically from?

(a) leaf to root

(b) root to node

(c) root to leaf

(d) left subtree to right subtree

Question is taken from Trees in section Trees of Data Structures & Algorithms I

This question was addressed to me in my homework.

Question Tags: Interview-Questions-Answers

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Editor Staff answered 5 months ago

Right choice is (a) leaf to root

To explain: One of the lemmas state that, in the Union/Find algorithm, the ranks of the nodes on a path will increase monotonically from leaf to root.

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