Answer / atul kabra

Suppose we want to fint the inorder successor of N. Then
traverse one time right from N. And then traverse a left
subtree until u will get left pointer null node.

s=n->right;
while(s->left!=NULL)
s=s->left;

printf("\nInoder Successor is %d",s->info);

Answer / shruti

inorder trraversal is
left - vertex - right.

hence to find the successor of a node.

consider N node . we have to find the inorder successor of
N.
then,

if(n -> right != NULL)
n = n -> right. /* this is the successor of n.
else
{
n = pop();
(/* we have to pop the address of the node above n, which
we have pushed earlier while traversing leftwards*/)
/*n will be hte successor node.
}


in inorder traversal we have number in ascending order in a
binary search tree.
hence the successor always is to the right, if exists,
or one level above.

**Go through the inorder traversal program to get a better
picture.

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