Based on an array implementation of a binary tree, construct an array version of a binary search tree using the simulated link approach. In addition to the array positions of the left and right children, each array element must maintain a reference to the data element that was initially placed there. In order to reuse such slots, you must additionally preserve a list of available array places with erased elements.

Based on an array implementation of a binary tree, construct an array version of a binary search tree using the simulated link approach. In addition to the array positions of the left and right children, each array element must maintain a reference to the data element that was initially placed there. In order to reuse such slots, you must additionally preserve a list of available array places with erased elements.

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O(N) is the order of growth execution time of the index-based add operation when using the ABList class, assuming a list size of N.
The Task This assignment requires you to write a non-verbose input-driven java program for m aint aining a binary search tree (BST) of integer elements (negative, zero or positive). The speciality of your BST will be that it will record the frequency of occurrence for each integer element in it. Actions provisioned on the BST. When your program is running, a user should be able to select one of the following actions to be performed on the BST. 1. Insert an element into the BST 2. Sear ch for an element in the BST 3. Find the maximum element from the BST 4. Find the minimum element from the BST 5. Print the elements in the BST in preorder 6. Print the elements in the BST in postorder 7. Print the elements in the BST in inorder 8. Delete an element Anything else to exit the program When the progr am is executed, the user will provide their choice of action on the BST, by entering one of the numbers between 1 to 8 that corre spond to their choice. For example, if the user wishes to insert…
def to tree (obj: Union [int, List])-> Optional [Tree]: """Return the Tree which represents. Return None if is not a valid representation of a Tree. You may not access Tree attributes directly, since they're private. This function can be implemented only using the Tree initializer. >>> t = to_tree ([1, [2, [5], [6]], [3, [7], [8, [10]]], [4, [9]]]) >>> t._root 1 >>> t._subtrees [0]._root 2 >>> t._subtrees [1]._root 3 >>> t._subtrees [2]._root 4
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Python code Screenshot and code is must
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