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Question

What must be the missing logic below so as to print mirror of a tree as below as an example?
if(rootnode):
  mirror(rootnode-->left)
  mirror(rootnode-->right)
 
  //missing
 
end

a.

swapping of left and right nodes is missing

b.

swapping of left with root nodes is missing

c.

swapping of right with root nodes is missing

d.

nothing is missing

Answer: (a).swapping of left and right nodes is missing

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Q. What must be the missing logic below so as to print mirror of a tree as below as an example?

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