Deleting a leaf node from a binary search tree is not difficult. Deleting a non-leaf node requires several steps.

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When deleting a leaf node, all we need to do is remove the reference to it from its parent node, whereas deleting a non-leaf node requires finding a suitable replacement node and updating the references of the parent and child nodes accordingly. This typically involves finding the node with the next highest or lowest value in the tree, which may involve traversing multiple levels of the tree. Therefore, deleting a non-leaf node requires more steps than deleting a leaf node.

Deleting a Leaf Node from a Binary Search Tree Is