Write a function called tree_sum () with the following function interface documentation: def tree_sum(tnode, val): Purpose Given a binary search tree containing integers, calculate the sum of all data in the tree less than or eq ual to a given value. Pre-conditions: tnode: a binary serach tree containing integers (satisfying the BST property) val: an integer lists: Return: *** The sum of all data less than val The function should return the sum of all values in tnode that are less than or equal to val. You may assume that the values in tnode are all unique, and that the tree satisfies the binary search tree property. For example, suppose a BST named t1 contains the data 3,7,8,12: • tree_sum (t1, 7) should return 10 • tree_sum (t1, 11) should return 18 • tree_sum (t1, 2) should return O. Notes: By definition, the sum of all values in an empty tree is 0, for any value val. • You may import the treenode module. • The function interface documentation is given. You do not need to include it in your answer.

Write a function called tree_sum () with the following function interface documentation: def tree_sum(tnode, val): Purpose Given a binary search tree containing integers, calculate the sum of all data in the tree less than or eq ual to a given value. Pre-conditions: tnode: a binary serach tree containing integers (satisfying the BST property) val: an integer lists: Return: *** The sum of all data less than val The function should return the sum of all values in tnode that are less than or equal to val. You may assume that the values in tnode are all unique, and that the tree satisfies the binary search tree property. For example, suppose a BST named t1 contains the data 3,7,8,12: • tree_sum (t1, 7) should return 10 • tree_sum (t1, 11) should return 18 • tree_sum (t1, 2) should return O. Notes: By definition, the sum of all values in an empty tree is 0, for any value val. • You may import the treenode module. • The function interface documentation is given. You do not need to include it in your answer.

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter18: Stacks And Queues

Section: Chapter Questions

Problem 16SA

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