Sure, here is a step-by-step guide to creating a linked list and performing operations such as inserting or deleting a node from the list in C:

Step 1: Define the structure for the linked list node
```
struct Node {
int data;
struct Node* next;
};
```

Step 2: Create a function to insert a node at the beginning of the linked list
```
void insertNode(struct Node** head, int newData) {
struct Node* newNode = (struct Node*)malloc(sizeof(struct Node));
newNode-data = newData;
newNode-next = *head;
*head = newNode;
}
```

Step 3: Create a function to delete a node from the linked list
```
void deleteNode(struct Node** head, int key) {
struct Node* temp = *head;
struct Node* prev = NULL;

if (temp != NULL && temp-data == key) {
*head = temp-next;
free(temp);
return;
}

while (temp != NULL && temp-data != key) {
prev = temp;
temp = temp-next;
}

if (temp == NULL) {
return;
}

prev-next = temp-next;
free(temp);
}
```

Step 4: Create a function to display the linked list
```
void displayList(struct Node* node) {
while (node != NULL) {
printf("%d ", node-data);
node = node-next;
}
printf("
");
}
```

Step 5: Test the linked list operations in the main function
```
int main() {
struct Node* head = NULL;

insertNode(&head, 3);
insertNode(&head, 5);
insertNode(&head, 7);
insertNode(&head, 9);

printf("Linked list: ");
displayList(head);

deleteNode(&head, 7);

printf("Linked list after deleting node with key 7: ");
displayList(head);

return 0;
}
```

This program creates a linked list with nodes containing integer data. It provides functions to insert a node at the beginning of the list and delete a node with a specific key from the list. The main function demonstrates the usage of these functions by inserting nodes into the list, displaying the list, and deleting a node with a specific key.

Question

Sure, here is a step-by-step guide to creating a linked list and performing operations such as inserting or deleting a node from the list in C:

Step 1: Define the structure for the linked list node
```
struct Node {
    int data;
    struct Node* next;
};
```

Step 2: Create a function to insert a node at the beginning of the linked list
```
void insertNode(struct Node** head, int newData) {
    struct Node* newNode = (struct Node*)malloc(sizeof(struct Node));
    newNode->data = newData;
    newNode->next = *head;
    *head = newNode;
}
```

Step 3: Create a function to delete a node from the linked list
```
void deleteNode(struct Node** head, int key) {
    struct Node* temp = *head;
    struct Node* prev = NULL;

if (temp != NULL && temp->data == key) {
        *head = temp->next;
        free(temp);
        return;
    }

while (temp != NULL && temp->data != key) {
        prev = temp;
        temp = temp->next;
    }

if (temp == NULL) {
        return;
    }

prev->next = temp->next;
    free(temp);
}
```

Step 4: Create a function to display the linked list
```
void displayList(struct Node* node) {
    while (node != NULL) {
        printf("%d ", node->data);
        node = node->next;
    }
    printf("
");
}
```

Step 5: Test the linked list operations in the main function
```
int main() {
    struct Node* head = NULL;

insertNode(&head, 3);
    insertNode(&head, 5);
    insertNode(&head, 7);
    insertNode(&head, 9);

printf("Linked list: ");
    displayList(head);

deleteNode(&head, 7);

printf("Linked list after deleting node with key 7: ");
    displayList(head);

return 0;
}
```

This program creates a linked list with nodes containing integer data. It provides functions to insert a node at the beginning of the list and delete a node with a specific key from the list. The main function demonstrates the usage of these functions by inserting nodes into the list, displaying the list, and deleting a node with a specific key.

Knowee AI · Accepted Answer