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

Category: QuestionsWhat is the depth of the root node of K-ary tree?
Editor">Editor Staff asked 1 month ago

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.

1 Answers
Editor">Editor Staff answered 1 month ago

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.