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void F(node&*root){if(root!=0){F(root->left); F(root->right); root->data=0; delete root;}root=0;}

void F(node&*root){if(root!=0){F(root->left); F(root->right); root->data=0; delete root;}root=0;}

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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void F(node<int>&*root){if(root!=0){F(root->left); F(root->right); root->data=0; delete root;}root=0;} this code 

Select one:
a.

all of them

b.

Set all data items in the binary tree to 0

c.

free the binary tree and returns it empty

d.

remove all items in the binary tree without changing its size

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