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Structure handling Complete the code below that (a) creates a node struct, (b) stores a number, (c) prepends to the list pointed by the head pointer passed as a parameter, and (d) returns the new head pointer. struct node { int y; struct node *next; }; /* zp is the head pointer of a linked list that may be empty. w is an interger that needs to be stored in struct. */ struct node *prepend (struct node *zp, int w) { ; /* declare a new pointer */ ; /* create a new struct */ } 3 4 ; /* store w in the newly created struct */ ; /* prepend new pointer */ ; /* retuern the head pointer */

Structure handling Complete the code below that (a) creates a node struct, (b) stores a number, (c) prepends to the list pointed by the head pointer passed as a parameter, and (d) returns the new head pointer. struct node { int y; struct node *next; }; /* zp is the head pointer of a linked list that may be empty. w is an interger that needs to be stored in struct. */ struct node *prepend (struct node *zp, int w) { ; /* declare a new pointer */ ; /* create a new struct */ } 3 4 ; /* store w in the newly created struct */ ; /* prepend new pointer */ ; /* retuern the head pointer */

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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please fill in the blanks and complate the code 

**Structure Handling:** **Objective:** Complete the code below that (a) creates a node struct, (b) stores a number, (c) prepends to the list pointed by the head pointer passed as a parameter, and (d) returns the new head pointer. --- ```c struct node { int y; struct node *next; }; /* zp is the head pointer of a linked list that may be empty. w is an integer that needs to be stored in struct. */ struct node *prepend(struct node *zp, int w) { _______1______ ; /* declare a new pointer */ _______2______ ; /* create a new struct */ _______3______ ; /* store w in the newly created struct */ _______4______ ; /* prepend new pointer */ _______5______ ; /* return the head pointer */ } ``` --- **Explanation:** 1. The struct `node` has an integer data member `y` and a pointer `next` to point to the next node. 2. In the `prepend` function: - The header pointer `zp` points to the head of the existing linked list. - The integer `w` must be stored in a new node which will become the new head of the list. **Detailed Steps to Fill in the Blanks:** 1. **Declare a new pointer:** ```c struct node *new_node; ``` 2. **Create a new struct:** ```c new_node = (struct node *)malloc(sizeof(struct node)); ``` 3. **Store `w` in the newly created struct:** ```c new_node->y = w; ``` 4. **Prepend new pointer by linking the new node with the existing list:** ```c new_node->next = zp; ``` 5. **Return the new head pointer:** ```c return new_node; ``` When all the blanks are filled correctly, the complete function looks like this: --- ```c struct node { int y; struct node *next; }; /* zp is the head pointer of a linked list that may be empty. w is an integer that needs to be stored in struct. */ struct node *prepend(struct node *zp, int w) { struct node *new_node; /* declare a new
Transcribed Image Text:**Structure Handling:** **Objective:** Complete the code below that (a) creates a node struct, (b) stores a number, (c) prepends to the list pointed by the head pointer passed as a parameter, and (d) returns the new head pointer. --- ```c struct node { int y; struct node *next; }; /* zp is the head pointer of a linked list that may be empty. w is an integer that needs to be stored in struct. */ struct node *prepend(struct node *zp, int w) { _______1______ ; /* declare a new pointer */ _______2______ ; /* create a new struct */ _______3______ ; /* store w in the newly created struct */ _______4______ ; /* prepend new pointer */ _______5______ ; /* return the head pointer */ } ``` --- **Explanation:** 1. The struct `node` has an integer data member `y` and a pointer `next` to point to the next node. 2. In the `prepend` function: - The header pointer `zp` points to the head of the existing linked list. - The integer `w` must be stored in a new node which will become the new head of the list. **Detailed Steps to Fill in the Blanks:** 1. **Declare a new pointer:** ```c struct node *new_node; ``` 2. **Create a new struct:** ```c new_node = (struct node *)malloc(sizeof(struct node)); ``` 3. **Store `w` in the newly created struct:** ```c new_node->y = w; ``` 4. **Prepend new pointer by linking the new node with the existing list:** ```c new_node->next = zp; ``` 5. **Return the new head pointer:** ```c return new_node; ``` When all the blanks are filled correctly, the complete function looks like this: --- ```c struct node { int y; struct node *next; }; /* zp is the head pointer of a linked list that may be empty. w is an integer that needs to be stored in struct. */ struct node *prepend(struct node *zp, int w) { struct node *new_node; /* declare a new
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