What is the size of Node A?

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Editor">Editor Staff asked 3 months ago

What is the size of Node A?
 
(a) 1
 
(b) 2
 
(c) 3
 
(d) 4
 
My question is taken from Ternary Tree topic in section Trees of Data Structures & Algorithms I
 
I have been asked this question during an interview for a job.

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1 Answers
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Editor">Editor Staff answered 3 months ago

Right answer is (d) 4
 
The best explanation: Size of node is defined as the total number of descendants of that node including itself. So, size of Node A is 4.

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