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What is the depth of the root node of K-ary tree?

(a) 2

(b) 1

(c) 0

(d) 3

My question is taken from K-ary tree in section Trees of Data Structures & Algorithms I

The question was asked during an internship interview.

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Best answer
Right option is (c) 0

The best I can explain: Depth is defined as the length of the path from root to the node. So the depth of root node in K-ary tree is 0.

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