Final answer:
The insert() function in C for a linked list is used to insert a new node at a specified position within the list. This function takes three parameters: the head of the linked list, the position at which the new node should be inserted, and the data of the new node. It creates a new node, traverses the list to reach the desired position, and updates the pointers to insert the new node.
Step-by-step explanation:
The insert() function in C for a linked list is used to insert a new node at a specified position within the list. Here is an example of what the function might look like:
void insert(Node** head, int position, int data) {
Node* newNode = malloc(sizeof(Node));
newNode->data = data;
Node* current = *head;
for (int i = 0; i < position - 1; i++) {
current = current->next;
}
newNode->next = current->next;
current->next = newNode;
}
This function takes three parameters: the head of the linked list, the position at which the new node should be inserted, and the data of the new node. It creates a new node, traverses the list to reach the desired position, and updates the pointers to insert the new node. Make sure to include the necessary header files and define the structure for the Node.