A binary search tree is given. Find the ceiling value present in the BST of a given key.
eg-
8
3 12
2 6 10 15
4
key - 13 => 15
key - 4 =>6
key - 8 =>10
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Similar to validate the BST
void findCeil(node* root, int num, int foundVal)
{
if(*root != NULL)
{
if(num >= root->val)
findCeil(root->right, num, foundVal);
else
findCeil(root->left, num, root->val);
}
else
printf("\n Value : %d", foundVal);
}