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Multiple choice in data structures void doo(node*root){ if(root !=0) { node*p=root; while(root->next!=0) root=root->next; p->data=root->data; } What is this code do?

Multiple choice in data structures void doo(node*root){ if(root !=0) { node*p=root; while(root->next!=0) root=root->next; p->data=root->data; } What is this code do?

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
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Multiple choice in data structures

void doo(node<int>*root){

if(root !=0) { node<int>*p=root;

while(root->next!=0) root=root->next;

p->data=root->data;

}

What is this code do?

a.

swap the first item with the last item in the linked list

b.

set the first item in the linked list as the last item

c.

doesn't do anything because the root parameter is passed by value

d.

change the root item in the binary tree with the farthest leaf item

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