In C, define: List addAt(List head, int item,int pos); List addFront (List head, int item){nodeptr temp=createNode (item); //1-2}1-2//3 the predecessor is headtemp->next=head; //4List addEnd (List head, int item) {nodeptr temp=createNode(item);//}head-temp; //5return head;nodeptr ptr;1/3ptr=head;while(ptr->next !=NULL)ptr=ptr->next;//4 temp->next is already NULLptr->next-temp;return head;List addAt (List head, int item, intpos);

As per the given question, we need to implement addAt() that adds a node with item value as data at…

Answered: In C, define: List addAt(List head, int…

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In C, define: List addAt(List head, int item,int pos);

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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Concept explainers

Types of Linked List

A sequence of data elements connected through links is called a linked list (LL). The elements of a linked list are nodes containing data and a reference to the next node in the list. In a linked list, the elements are stored in a non-contiguous manner and the linear order in maintained by means of a pointer associated with each node in the list which is used to point to the subsequent node in the list.

Linked List

When a set of items is organized sequentially, it is termed as list. Linked list is a list whose order is given by links from one item to the next. It contains a link to the structure containing the next item so we can say that it is a completely different way to represent a list. In linked list, each structure of the list is known as node and it consists of two fields (one for containing the item and other one is for containing the next item address).

Question

In C, define: List addAt(List head, int item,int pos);

List addFront (List head, int item){
nodeptr temp=createNode (item); //
1-2
}
1-2
//3 the predecessor is head
temp->next=head; //4
List addEnd (List head, int item) {
nodeptr temp=createNode(item);//
}
head-temp; //5
return head;
nodeptr ptr;
1/3
ptr=head;
while(ptr->next !=NULL)
ptr=ptr->next;
//4 temp->next is already NULL
ptr->next-temp;
return head;
List addAt (List head, int item, int
pos);

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