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Data Structures | Binary Search Trees | Question 2
In delete operation of BST, we need inorder successor (or predecessor) of a node when the node to be deleted has both left and right child as non-empty. Which of the following is true about inorder successor needed in delete operation?
(A)
Inorder Successor is always a leaf node
(B)
Inorder successor is always either a leaf node or a node with empty left child
(C)
Inorder successor may be an ancestor of the node
(D)
Inorder successor is always either a leaf node or a node with empty right child
Answer
Please comment below if you find anything wrong in the above post
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