What is a full binary tree?
A. Each node has exactly zero or two children
B. Each node has exactly two children
C. All the leaves are at the same level
D. Each node has exactly one or two children
Answer:A
What is a full binary tree?
A. Each node has exactly zero or two children B. Each node has exactly two children C. All the leaves are at the same level D. Each node has exactly one or two children