how to make a linked list in c

To make a linked list in C, you can follow these steps:

  1. Define a structure to represent each node of the linked list. This structure should contain two members: one to hold the data of the node, and another to store the address of the next node in the list.
struct Node {
    int data;
    struct Node* next;
};
  1. Create a function to insert a new node at the beginning of the linked list. This function should take the head of the list and the data for the new node as parameters.
void insert(struct Node head, int data) {
    struct Node newNode = (struct Node)malloc(sizeof(struct Node));
    newNode->data = data;
    newNode->next = *head;
    *head = newNode;
}
  1. Create a function to print the elements of the linked list. This function should take the head of the list as a parameter and traverse the list, printing the data of each node.
void printList(struct Node* head) {
    struct Node* currentNode = head;
    while (currentNode != NULL) {
        printf("%d ", currentNode->data);
        currentNode = currentNode->next;
    }
}
  1. Create a main function to test the linked list implementation. In this function, you can create a few nodes, insert them into the list, and then print the list.
int main() {
    struct Node* head = NULL;
    insert(&head, 3);
    insert(&head, 7);
    insert(&head, 9);
    printList(head);
    return 0;
}

This is a basic implementation of a linked list in C. You can further enhance it by adding functions to delete nodes, search for a specific value, or perform other operations as needed.