What is avl tree in c

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Javatpoint Services JavaTpoint offers too many high quality services. Complexity Algorithm Average case Worst case Space. Insertion in AVL tree is performed in the same way as it is performed in a binary search tree. However, it may lead to violation in the AVL tree property and therefore the tree may need balancing.

The tree can be balanced by applying rotations. Deletion can also be performed in the same way as it is performed in a binary search tree. Deletion may also disturb the balance of the tree therefore, various types of rotations are used to rebalance the tree. A node B has been inserted into the right subtree of A the left subtree of C, because of which C has become an unbalanced node having balance factor 2.

This case is L R rotation where: Inserted node is in the right subtree of left subtree of C. By doing RR rotation, node A , has become the left subtree of B. In left-rotation, the arrangement of the nodes on the right is transformed into the arrangements on the left node. In left-rotation, the arrangement of the nodes on the left is transformed into the arrangements on the right node. A node is always deleted as a leaf node.