How will you remove a left horizontal link in an AA-tree?

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Editor">Editor Staff asked 5 months ago

How will you remove a left horizontal link in an AA-tree?
 
(a) by performing right rotation
 
(b) by performing left rotation
 
(c) by deleting both the elements
 
(d) by inserting a new element
 
My doubt stems from Binary Trees in division Binary Trees of Data Structures & Algorithms I
 
I have been asked this question in final exam.

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1 Answers
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Editor">Editor Staff answered 5 months ago

Right option is (a) by performing right rotation
 
The explanation is: A left horizontal link is removed by right rotation.  A right horizontal link is removed by left rotation.


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